In quantum mechanics, a Fock state or number state is a quantum state that is an element of a Fock space with a well-defined number of particles (or quanta)...

respectively). A general state in Fock space is a linear combination of n-particle states, one for each n. Technically, the Fock space is (the Hilbert space...

Klein–Gordon equation. He gave his name to Fock space, the Fock representation and Fock state, and developed the Hartree–Fock method in 1930. He made many subsequent...

by Pascual Jordan and Vladimir Fock. In this approach, the quantum many-body states are represented in the Fock state basis, which are constructed by...

Fock state (e.g. a single photon) is the most particle-like state; it has a fixed number of particles, and phase is indeterminate. A coherent state distributes...

however, the quantum system has no classical analog, e.g. an incoherent Fock state or entangled system, then P is negative somewhere or more singular than...

Moreover, it comprises quantum objects like wave functions and a fermionic Fock state. Inspired by the Lagrangian formulation of classical field theory, the...

many-body system in a stationary state. The method is named after Douglas Hartree and Vladimir Fock. The Hartree–Fock method often assumes that the exact...

into one object (a Fock state), and then describe the "evolution" of this state over time using the interaction picture. The Fock space is spanned by...

Vladimir Fock: Fock matrix Fock operator Fock model Fock representation Fock space Bargmann–Fock space Fock state Fock symmetry Fock–Lorentz symmetry Fock–Schwinger...

Gorch Fock is a tall ship of the German Navy, launched in 1958 as a replacement for the original Gorch Fock (1933) launched in 1933 which was taken as...

mode". Finally, there also exist twin Fock states for bosonic modes, which can be created by feeding a Fock state into two arms leading to a beam splitter...

however, the quantum system has no classical analog, e.g. an incoherent Fock state or entangled system, then P is negative somewhere or more singular than...

explicitly shows that the pure SMSV consists entirely of even-photon Fock state superpositions. Single mode squeezed states are typically generated by...

Gorch Fock I (ex Tovarishch, ex Gorch Fock) is a German three-mast barque, the first of a series built as school ships for the German Reichsmarine in 1933...

\rangle _{\nu }=|\phi _{1},\phi _{2},\cdots ,\phi _{n}\rangle _{\nu }} be a Fock state, composed of single-particle states | ϕ i ⟩ {\displaystyle |\phi _{i}\rangle...

Bellini, Marco (2004). "Tomographic reconstruction of the single-photon Fock state by high-frequency homodyne detection". Physical Review A. 70 (5): 053821...

of the classic binary bit physically realized with a two-state device. A qubit is a two-state (or two-level) quantum-mechanical system, one of the simplest...

defined in the number (Fock) basis. Notice that if we add the two states together, the resulting cat state only contains even Fock state terms: | c a t e ⟩...

Collider. In modern physics notation, the quantum state of the electromagnetic field is written as a Fock state, a tensor product of the states for each electromagnetic...

The Klein–Gordon equation (Klein–Fock–Gordon equation or sometimes Klein–Gordon–Fock equation) is a relativistic wave equation, related to the Schrödinger...

the particle number operator (see Fock state) is conjugate to the phase of the classical wave (see coherent state). One measure of air pollution used...

mechanics Observable Operator (physics) Quantum state Pure state Fock state, Fock space Density state Coherent state Heisenberg picture Density matrix Quantum...

e. the states |01⟩ and |10⟩ in the occupation number representation (Fock state) of two modes. Using these resources it is possible to implement any single...

single Fock state that minimizes the energy. NP-hard or NP-complete as demonstrated by embedding instances of the Ising model into Hartree-Fock calculations...

Prime minister (1961–1965) Gyula Kállai, Prime minister (1965–1967) Jenő Fock, Prime minister (1967–1975) György Lázár, Prime minister (1975–1987) Károly...

collapse zero-point energy bound state coherent state squeezed coherent state density state Fock state, Fock space vacuum state quasinormal mode no-cloning...

inference. A very big cat state, with 10 cats separated at α = 10 {\displaystyle \alpha =10} . Fock states Superpositioned Fock states, for ( n , m ) =...

})^{n}|0\rangle =n(a^{\dagger })^{n}|0\rangle .} A photon number state (or a Fock state) is an eigenstate of the number operator. This is why the formalism...

predicted the sampling problem had similar complexity for inputs other than Fock-state photons and identified a transition in computational complexity from classically...