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Quantum mechanical operator interchanging particle states as arguments to a function
mechanics, the exchange operator P ^ {\displaystyle {\hat {P}}} , also known as permutation operator, is a quantum mechanical operator that acts on states
Exchange_operator
American financial exchange operator
Holdings) is an American financial exchange operator headquartered in Chicago. It owns and operates a portfolio of exchanges and trading venues across equities
Cboe_Global_Markets
Securities exchange operator in South Korea
Korea Exchange (KRX, Korean: 한국거래소) is the sole securities exchange operator in South Korea. It is headquartered in Busan, and has an office for cash markets
Korea_Exchange
Device used to connect telephone circuits to establish calls between users
switchboard is an essential component of a manual telephone exchange, and is operated by switchboard operators who use electrical cords or switches to establish
Telephone_switchboard
Stock exchange based in Hong Kong
The Stock Exchange of Hong Kong (Chinese: 香港交易所, SEHK, also known as Hong Kong Stock Exchange) is a stock exchange based in Hong Kong. It is one of the
Hong_Kong_Stock_Exchange
Global stock exchange operator
BATS Global Markets is a global stock exchange operator founded in Lenexa, Kansas, with additional offices in London, New York, Chicago, and Singapore
BATS_Global_Markets
British financial services company
9 February 2011, TMX Group, operator of the Toronto Stock Exchange agreed to join forces with the London Stock Exchange Group in a deal described by
London_Stock_Exchange_Group
US-based cryptocurrency exchange
crypto exchange operator". reuters. 12 December 2024. Retrieved 3 November 2025. "Aussie regulator wins case against Kraken crypto exchange operator on distribution
Kraken (cryptocurrency exchange)
Kraken_(cryptocurrency_exchange)
Japanese financial instruments exchange holding company and its corporate group
Exchange Group, Inc., and its subsidiaries: Tokyo Stock Exchange, Inc. (TSE) - operator of Tokyo Stock Exchange Osaka Exchange, Inc. (OSE) - operator
Japan_Exchange_Group
American multinational financial services corporation
software, exchange capabilities, and advisory services to corporate clients, investment managers, banks, brokers, and exchange operators across the global
Nasdaq,_Inc.
Telecommunication system for establishing telephone calls
telephone operator routes calls as instructed by a subscriber with a telephone set that does not have a dial. Dial service is when an exchange routes calls
Telephone_exchange
Salutation or greeting
which was the site of the first telephone operators convention. By 1889, central telephone exchange operators were known as "hello-girls" because of the
Hello
American financial and commodity derivative exchange
426. ISSN 2041-8396. S2CID 244457751. "Global futures reopen after exchange operator CME suffers multi-hour disruption". Reuters. Retrieved November 30
Chicago_Mercantile_Exchange
National stock exchange of Thailand, located in Bangkok
làːt.làk.sáp.hɛ̀ŋ.pra.tʰêt.tʰāj]; abbr. SET) has been the sole stock exchange operator in Thailand since its establishment on 30 April 1975. As of 8 April
Stock_Exchange_of_Thailand
{J}}_{j}} and K ^ j {\displaystyle {\hat {K}}_{j}} are the Coulomb and exchange operators, and i runs over the total N spin orbitals. In the closed-shell case
Fock_matrix
Wife or companion of Indian nationalist Subhas Chandra Bose
13 March 1996) was an Austrian stenographer, secretary and trunk exchange operator. She was the wife (or companion) of Subhas Chandra Bose, an Indian
Emilie_Schenkl
American exchange and clearing house company
environment. ICE was also named to the Fortune 500 in June 2017 as the only exchange operator included in the ranking. On September 6, 2019, Bloomberg reported
Intercontinental_Exchange
International exchange
Zürich AG, which are public companies wholly owned by the German stock exchange operator Deutsche Börse AG. In the 1990s, Europe went through a power shift
Eurex
American stock exchange
market to a licensed national securities exchange. In 2007, it merged with OMX, a leading exchange operator in the Nordic countries, expanded its global
Nasdaq
Call assistance services
Operator assistance refers to service provided by a telephone operator to the calling party of a telephone call. This included telephone calls made from
Operator_assistance
manner. The user alerted the other end, or the exchange operator, by whistling into the transmitter. Exchange operation soon resulted in telephones being
History_of_the_telephone
Irish businessman and financier
name of Global Betting Exchange, a betting exchange operator based in Ireland. It is the second largest betting exchange operator in the country. The company
Dermot_Desmond
network of manual exchanges (80 in 1927) and individual telephone exchanges were given names, e.g. Central; a caller asked the operator for Central 1234
List of telephone exchanges in London
List_of_telephone_exchanges_in_London
Irish gambling company
original owner, Dermot Desmond, for an undisclosed sum. As a betting exchange operator, Betdaq currently holds an approximate 7% market share. Betdaq allows
Betdaq
Former telephony occupation
Switchboard operators are typically required to have very strong communication skills. Before the advent of automatic exchanges, an operator's assistance
Switchboard_operator
American private equity firm
US exchange operator's biggest deal". Financial Times. Shekhawat, Jaiveer; Biswas, Pritam. "Thoma Bravo divests all its stake in exchange operator Nasdaq
Thoma_Bravo
Danish company
system used by more than 190 clients around the world. In 2023, stock exchange operator Deutsche Börse agreed to buy SimCorp for €3.9 billion. On November
SimCorp
Marketplace for customers to bet on the outcome of discrete events
losses or lock in profit. Bookmaker operators generate revenue by offering less efficient odds. Betting exchanges normally generate revenue by charging
Betting_exchange
Matrices important in quantum mechanics and the study of spin
_{k}\sigma _{j}\right\rangle .} This operator can also be written more explicitly as Dirac's spin exchange operator, P j k = 1 2 ( σ → j ⋅ σ → k + 1
Pauli_matrices
Capital markets software company
buy Adenza for $10.5bn in US exchange operator's biggest deal". Financial Times. Laurie McAughtry (2025-01-22). "Exchange evolution: Nasdaq president Tal
Adenza
Approximation method in quantum physics
{x} _{k}),} where the Coulomb operator J ^ ( x k ) {\displaystyle {\hat {J}}(\mathbf {x} _{k})} and the exchange operator K ^ ( x k ) {\displaystyle {\hat
Hartree–Fock_method
Quantum mechanical operator used in the field of quantum chemistry
{\displaystyle (i)} and ( j ) {\displaystyle (j)} . Core Hamiltonian Exchange operator Ramachandran, K. I. (2008). Computational chemistry and molecular
Coulomb_operator
Number-state in quantum mechanics
rule: their composite eigenstate is symmetric under operation by an exchange operator. For example, in a two particle system in the tensor product representation
Fock_state
Mathematical structures that allow quantum mechanics to be explained
particles. In a system of identical particles, let P be known as exchange operator that acts on the wavefunction as: P ( ⋯ | ψ ⟩ | ϕ ⟩ ⋯ ) ≡ ⋯ | ϕ ⟩
Mathematical formulation of quantum mechanics
Mathematical_formulation_of_quantum_mechanics
Financial services company of Germany
deal would see the new company becoming the world's largest stock exchange operator with a market capitalisation of listed companies equal to US$15 trillion
Deutsche_Börse
American exchange and clearing house company
"Exchange operator Miami International soars 38% in debut after $345 million IPO". Reuters. August 14, 2025. "CME Group challenges Miami exchange with
Miami_International_Holdings
European financial services company
Euronext on 22 May 2006, outbidding a rival offer for the European Stock exchange operator from Deutsche Börse, the German stock market. Contrary to statements
Euronext
Telecommunications device
manner. The user alerted the other end, or the exchange operator, by whistling into the transmitter. Exchange operation soon resulted in telephones being
Telephone
Pan-European electric power exchange
European exchange operator Euronext as well as TSO Holding, which represents the continental Nordic and Baltic countries' transmission system operators (TSOs:
Nord_Pool
Alphanumeric telephone numbering plan
the required number would be displayed to the operator. In the United Kingdom, the first Director exchange in London, Holborn Tandem, was cutover in 1927;
Telephone_exchange_names
New Zealand airport operating company
company with listings on the New Zealand Exchange and Australian Securities Exchange that is the owner and operator of Auckland Airport and a major stakeholder
Auckland International Airport Limited
Auckland_International_Airport_Limited
Euro-American multinational financial services corporation
major European derivatives exchange by value of trading. NYSE Euronext is part of the S&P 500 index and the only exchange operator in the S&P 100 index. NYSE
NYSE_Euronext
American multinational financial services corporation
International Securities Exchange Holdings, Inc. (ISE) is a wholly owned subsidiary of American multinational financial services corporation Nasdaq, Incorporated
International Securities Exchange
International_Securities_Exchange
Concept in quantum mechanics of perfectly substitutable particles
as exchange symmetry. Define a linear operator P, called the exchange operator. When it acts on a tensor product of two state vectors, it exchanges the
Indistinguishable_particles
British foreign currency exchange business
foreign exchange operator to offer a pre-paid currency card and also to offer a voucher system, whereby customers are able to get discounted exchange rates
International Currency Exchange
International_Currency_Exchange
Mexican airport operator
Aeroportuario del Sureste, S.A.B. de C.V., known as ASUR, is a Mexican airport operator headquartered in Mexico City, Mexico. It operates 9 airports in the southeastern
Grupo Aeroportuario del Sureste
Grupo_Aeroportuario_del_Sureste
Atom of helium
energy of the state. Other operators that commute with the Hamiltonian are the spatial exchange operator and the parity operator. However a good combination
Helium_atom
Bounded linear operator
Vf(x)=\int _{0}^{1}1_{y\leq x}f(y)dy} proven by exchanging the integral sign. V is a Hilbert–Schmidt operator with norm ‖ V ‖ H S 2 = 1 / 2 {\displaystyle
Volterra_operator
Malaysian financial services company
February 2021, Kenanga IB acquired a 19% stake in cryptocurrency exchange operator Tokenize. Annual Report 2024, K & N Kenanga Holdings Berhad, 2024-12-31
Kenanga
Mathematical operator
In mathematics, a closure operator on a set S is a function cl : P ( S ) → P ( S ) {\displaystyle \operatorname {cl} :{\mathcal {P}}(S)\rightarrow {\mathcal
Closure_operator
with 0: 00 used for checking the phone line. 01, later 011 local exchange operator (free number) 02, later 021 telephone line service (possibly telephone
Telephone_numbers_in_Romania
Energy exchange in Tokyo, Japan
of Japan Exchange Group (JPX). Under the Commodity Derivatives Transaction Act [ja] of Japan, It is a licensed commodity exchange operator that provides
Tokyo_Commodity_Exchange
Quantum-mechanical framework for simulating molecules and solids
the nonlocal exchange operator from Hartree–Fock (HF) theory, v ^ x {\textstyle {\hat {v}}_{x}} is the local Kohn–Sham (KS) exchange operator both evaluated
Görling–Levy perturbation theory
Görling–Levy_perturbation_theory
Method of describing higher-order polyhedra
various prefix operations. Conway and Hart extended the idea of using operators, like truncation as defined by Kepler, to build related polyhedra of the
Conway_polyhedron_notation
American multinational private equity firm
$100 million investment into Miami International Holdings, a major exchange operator in the U.S. In October 2024, Warburg Pincus invested $125 million
Warburg_Pincus
Airport operator in Mexico
Pacífico ("Pacific Airports Group"), also known as GAP, is a Mexican airport operator headquartered in Guadalajara, Mexico. It operates 12 airports in central
Grupo Aeroportuario del Pacífico
Grupo_Aeroportuario_del_Pacífico
Mid-20th-century political scandals
that from 1969 to 1975 Lockheed used Deak & Company, a large foreign exchange operator owned by Nicholas Deak, as the conduit to transfer money intended
Lockheed_bribery_scandals
Stock exchange in Yerevan, Armenia
company. On 21 November 2007, 100% of the stock exchange's shares were purchased by the Nordic exchange operator OMX. In March 2008, after the merger of NASDAQ
Armenia_Stock_Exchange
1923 roman à clef by Edwin Lefèvre
Reminiscences of a Stock Operator is a 1923 roman à clef by American author Edwin Lefèvre. It is told in the first person by a character, in the book called
Reminiscences of a Stock Operator
Reminiscences_of_a_Stock_Operator
Telephone switching system used in the UK
three code digits, and wait to be connected by an operator. Later some of the remaining manual exchanges were equipped with Coded-Call Indicators (CCI) which
Director_telephone_system
Subsidiary of Nasdaq, Inc.
November 19, 2020, American financial services company and stock exchange operator Nasdaq, Inc. announced a deal to buy the company for US$2.75 billion
Verafin
Transelectrica is an electricity transmission system operator in Romania. It is publicly traded company with 58,69% of the shares being held by the Ministry
Transelectrica
Computational operation
"Binary Operators". Haxe - The Cross-platform Toolkit. Retrieved 2026-01-20. "Operators". Microsoft. 30 June 2021. Retrieved 2021-07-19. The % operator is
Modulo
Type of financial fraud
invested. In some cases, the operator of the scheme may simply disappear with the money. According to the U.S. Securities and Exchange Commission (SEC), many
Ponzi_scheme
American exchange and clearing house company
financial conglomerate and exchange operator Miami International Holdings (MIH), announced plans to launch a new US stock exchange, which would later become
MIAX_Pearl_Equities
American financial derivatives company
Dow Jones Indices. It is the world's largest operator of financial derivatives exchanges. Its exchanges are platforms for trading in agricultural products
CME_Group
Stock exchange located in Berlin, Germany
which was established in 2009. In October 2019, Tradegate Exchange GmbH, the stock exchange operator, announced the completion of a share deal to acquire 100
Börse_Berlin
Telecommunications interconnection model
operators have been using GRX (GPRS Roaming Exchange) network for routing the IP based commercial roaming traffic between visited and home operators.
IP_exchange
Electromechanical telephone switch
motivated to invent an automatic telephone exchange after becoming convinced that the manual telephone exchange operators were deliberately interfering with his
Strowger_switch
City in South Korea
needed] Busan is also a center of finance. Korea Exchange (KRX), Korea's sole securities exchange operator, is headquartered in Busan. The city is home to
Busan
Theoretical physicist
and integrable systems, including the Polychronakos model and the exchange operator formalism, fractional statistics, matrix model description of quantum
Alexios_Polychronakos
Operators useful in quantum mechanics
Creation operators and annihilation operators are mathematical operators that have widespread applications in quantum mechanics, notably in the study
Creation and annihilation operators
Creation_and_annihilation_operators
Hong Kong business executive (born 1970)
"Explainer | Who is Bonnie Chan, first woman CEO of Hong Kong stock exchange operator HKEX?". South China Morning Post. Retrieved 23 April 2026. "Face to
Bonnie_Chan
British online gambling operator
Sportingbet is a British online gambling operator, owned by Entain plc. The company was listed on the London Stock Exchange and was a constituent of the FTSE
Sportingbet
American amusement park company
is the largest regional amusement park operator in North America and the fifth-largest amusement park operator in the world by attendance, hosting 50
Six_Flags
companies, such as the Australian Energy Market Operator, trade gas and electricity. These exchanges often provide data to energy regulators. Energy economics
Energy_exchange
American actress (1902–1995)
the Rockford Players. In 1930 she made her debut on Broadway as the Exchange Operator in Louis Weitzenkorn's Five Star Final. Her other Broadway credits
Lillian_Bronson
Scottish writer
mother, originally from Tobermory on the Isle of Mull, was a telephone exchange operator. She studied English and Philosophy at Strathclyde University and
Alex_Gray_(author)
Internet infrastructure through which ISPs exchange traffic
commercial operators to realize that they needed to be able to communicate with each other independent of third parties or at neutral exchange points. Although
Internet_exchange_point
Insolvent German financial services company
the shares became penny stocks following price losses, the stock exchange operator Deutsche Börse wanted to exclude InfoGenie from the Neuer Markt, but
Wirecard
Open-source artificial intelligence ecosystem
The Open Neural Network Exchange (ONNX) [ˈɒnɪks] is an open-source artificial intelligence ecosystem of technology companies and research organizations
Open_Neural_Network_Exchange
at Malawi Stock Exchange – Business Recorder". Retrieved 2022-01-25. "SEM Trading System operator". "Nasdaq and Nigerian Stock Exchange (NSE) Sign New
List of African stock exchanges
List_of_African_stock_exchanges
Stock exchange in Kuwait
Securities Co., is the private-sector corporate owner and operator of the Kuwait Stock Exchange (KSE), the national stock market of Kuwait. Although several
Boursa_Kuwait
Wireless telecom service reseller
A mobile virtual network operator (MVNO) is a wireless communications services provider that does not own the wireless network infrastructure over which
Mobile virtual network operator
Mobile_virtual_network_operator
Blue chip stock market index
Frankfurt Stock Exchange. It is a total return index. Prices are taken from the Xetra trading venue. According to Deutsche Börse, the operator of Xetra, DAX
DAX
Representation of angular momentum tensor product states important to physics
12 {\displaystyle \mathbf {P_{12}} } are the operator that interchanges the particles (Exchange operator). The following relation follows:- P 12 P 12
Clebsch–Gordan coefficients for SU(3)
Clebsch–Gordan_coefficients_for_SU(3)
Type of algorithmic trading
$14 million penalty against a subsidiary of BATS Global Markets, an exchange operator that was founded by high-frequency traders. The BATS subsidiary Direct
High-frequency_trading
Sequence of digits assigned to a telephone subscription
use and reduced errors when telephone numbers were exchanged verbally between subscribers and operators. When subscribers could dial themselves, the initial
Telephone_number
British foodservice company
an operator of food and beverage outlets in travel locations. The company, headquartered in London, England, is listed on the London Stock Exchange and
SSP_Group
Organization that provides telephone and/or other telecommunications services
local exchange carriers. With the advent of mobile telephony, telecommunications companies now include wireless carriers, or mobile network operators and
Telecommunications_company
Transport services company and property developer in Hong Kong
MTR Corporation Limited is a majority government-owned public transport operator and property developer in Hong Kong which operates the Mass Transit Railway
MTR_Corporation
service provider. It was developed to facilitate a more efficient way for operators to interconnect networks, and played a large part in the transition to
GPRS_roaming_exchange
(on a complex Hilbert space) continuous linear operator
functional analysis, a normal operator on a complex Hilbert space H {\displaystyle H} is a continuous linear operator N : H → H {\displaystyle N\colon
Normal_operator
British electricity and gas utility company
Gas". London Stock Exchange. 26 September 2024. Retrieved 26 September 2025. "New publicly owned National Energy System Operator to pave the way to a
National_Grid_plc
Business that pools together investments for trading in commodity interests
complex". In July 2010, the definition of commodity pool operator under the Commodity Exchange Act was expanded by the Dodd-Frank Wall Street Reform and
Commodity_pool_operator
Swedish multinational telecommunication provider
were introduced on the Stockholm Stock Exchange. In the 1980s, Televerket was a pioneering mobile network operator with the NMT system, followed in the
Telia_Company
Mexican airport operating company
Aeroportuario Centro Norte, S.A.B. de C.V., known as OMA, is a Mexican airport operator headquartered in San Pedro, near Monterrey, Mexico. It operates 13 airports
Grupo Aeroportuario Centro Norte
Grupo_Aeroportuario_Centro_Norte
Trading venue based in Germany
trading participants and in the public eye, and to license it to other exchange operators. The trading technology of Xetra was designed and implemented on the
Xetra_(trading_system)
Foreign exchange process
normal exchange rate, though this may not be obviously disclosed to the customer at the time. The merchant, the merchant's bank or ATM operator usually
Dynamic_currency_conversion
Belgian high-voltage transmission system operator
Elia is a Belgian transmission system operator for high-voltage electricity (30,000–380,000 volts), located in Brussels, Belgium. It operates in Belgium
Elia_Transmission_Belgium
EXCHANGE OPERATOR
EXCHANGE OPERATOR
Girl/Female
Biblical
Their change, their sleep.
Girl/Female
Biblical
Ambush, change of dominion.
Boy/Male
Hebrew
Change.
Boy/Male
Biblical
Dwelling-place, change of mercy.
Boy/Male
Indian, Punjabi, Sikh
Change the World
Biblical
their change; their sleep
Boy/Male
Gujarati, Hindu, Indian
Change of Wind
Girl/Female
Hindu, Indian
Change of Wind
Girl/Female
Biblical
Change.
Boy/Male
Greek
Change.
Biblical
change
Girl/Female
Biblical
Tooth, ivory, change.
Girl/Female
Arabic, Muslim
Stable; Never Change
Boy/Male
Hindu, Indian
Change of Krishna
Boy/Male
Hebrew
Change.
Boy/Male
Hebrew
Change.
Biblical
ambush; change of dominion
Boy/Male
Hebrew
Change.
Boy/Male
Arabic, Hebrew, Portuguese
To Create Good Change
Biblical
dwelling-place; change of mercy
EXCHANGE OPERATOR
EXCHANGE OPERATOR
Girl/Female
Indian
Prosperity
Girl/Female
Arabic
Woman
Boy/Male
Indian
Very good
Boy/Male
American, Anglo, British, English
From the Lake Forest
Boy/Male
Indian
Compeller, Comforter, Compelled
Girl/Female
Indian, Kannada, Telugu
Desire
Boy/Male
Arabic, Australian, Muslim
Lion
Boy/Male
Hindu, Indian, Marathi
Lord Shiva
Boy/Male
Hindu
Boy/Male
Bengali, Celebrity, Gujarati, Hindu, Indian, Jain, Kannada, Kashmiri, Malayalam, Marathi, Modern, Oriya, Punjabi, Sanskrit, Sikh, Telugu
Rays; Sun Rays; Ray of Light
EXCHANGE OPERATOR
EXCHANGE OPERATOR
EXCHANGE OPERATOR
EXCHANGE OPERATOR
EXCHANGE OPERATOR
n.
A renewed exchange; a reversal of an exchange.
imp. & p. p.
of Exchange
v. t. & i.
To change again, or change back.
v. t.
To alter by substituting something else for, or by giving up for something else; as, to change the clothes; to change one's occupation; to change one's intention.
a.
Belonging to exchanges in commerce; of exchange.
n.
To part with for a substitute; to lay aside, quit, or resign (something being received in place of the thing parted with); as, to exchange a palace for cell.
v. t.
To exchange anew; to reverse (a previous exchange).
n.
The place where the merchants, brokers, and bankers of a city meet at certain hours, to transact business. In this sense often contracted to 'Change.
n.
To give and receive reciprocally, as things of the same kind; to barter; to swap; as, to exchange horses with a neighbor; to exchange houses or hats.
n.
The act of substituting one thing in the place of another; as, an exchange of grief for joy, or of a scepter for a sword, and the like; also, the act of giving and receiving reciprocally; as, an exchange of civilities or views.
n.
An exchanger or an exchange of benefices.
v. t.
To give and take reciprocally; to exchange; -- followed by with; as, to change place, or hats, or money, with another.
n.
A mutual grant of equal interests, the one in consideration of the other. Estates exchanged must be equal in quantity, as fee simple for fee simple.
n.
The act of giving or taking one thing in return for another which is regarded as an equivalent; as, an exchange of cattle for grain.
v. i.
To be changed or received in exchange for; to pass in exchange; as, dollar exchanges for ten dimes.
n.
One who exchanges; one who practices exchange.
v. t.
Specifically: To give, or receive, smaller denominations of money (technically called change) for; as, to change a gold coin or a bank bill.
n.
The process of setting accounts or debts between parties residing at a distance from each other, without the intervention of money, by exchanging orders or drafts, called bills of exchange. These may be drawn in one country and payable in another, in which case they are called foreign bills; or they may be drawn and made payable in the same country, in which case they are called inland bills. The term bill of exchange is often abbreviated into exchange; as, to buy or sell exchange.
n.
The thing given or received in return; esp., a publication exchanged for another.
n.
Exchange.