Results 61 to 70 of about 1,132 (169)

Exact bosonic Matrix Product States (and holography)

open access: yesJournal of High Energy Physics, 2019
We derive an exact formula for a matrix product state (MPS) representation (or a PEPS in higher number of dimensions) of the ground state of translationally invariant bosonic lattice systems in terms of a single one-dimensional Euclidean quantum ...
Romuald A. Janik
doaj   +1 more source

Liouville-Fock-state lattices: From environment-induced frustration to synthetic lattice dynamics

open access: yesPhysical Review Research
We introduce Liouville-Fock-state lattices (LFSLs) as a framework for visualizing open quantum systems through matrix representations of the Lindblad master equation.
Caio B. Naves, Jonas Larson
doaj   +1 more source

A hyperdeterminant on fermionic Fock space

open access: yesAnnales de l’Institut Henri Poincaré D, Combinatorics, Physics and their Interactions
Twenty years ago, Cayley's hyperdeterminant, the degree four invariant of the polynomial ring \mathbb{C}[\mathbb{C}^2\otimes\mathbb{C}^2\otimes \mathbb{C}^2]^{{\operatorname{SL}_2(\mathbb{C})}^{\times 3}} , was popularized in modern physics as it separates genuine entanglement classes in
Frédéric Holweck, Luke Oeding
openaire   +2 more sources

Lie algebras in Fock space

open access: yes, 2000
A catalogue of explicit realizations of representations of (super) Lie algebras and quantum algebras in Fock space is presented.
openaire   +2 more sources

Two-parameter generalization for the super modified KP hierarchy in super Fock spaces

open access: yesPhysics Letters B
This paper presents a construction of the (λ, n)-generalized super modified KP (SmKP) hierarchy, an extended integrable system that contains the standard super modified KP hierarchy as the special case λ=0, where λ is a non-negative integer and n a ...
Huizhan Chen
doaj   +1 more source

Exchange gate on the qudit space and Fock space

open access: yesJournal of Optics B: Quantum and Semiclassical Optics, 2003
We construct the exchange gate with small elementary gates on the space of qudits, which consist of three controlled shift gates and three "reverse" gates. This is a natural extension of the qubit case. We also consider a similar subject on the Fock space, but in this case we meet with some different situation.
openaire   +2 more sources

Quantum Error Correction beyond SU(2): Spin, Bosonic, and Permutation-Invariant Codes from Convex Geometry

open access: yesPRX Quantum
We develop a framework for constructing quantum error-correcting codes and logical gates for three types of spaces—composite permutation-invariant spaces of many qubits or qudits, composite constant-excitation Fock state spaces of many bosonic modes, and
Arda Aydin   +2 more
doaj   +1 more source

Dual Toeplitz operators on the weighted Fock spaces

open access: yes四川大学学报. 自然科学版
With the successful characterization of the semi-commutativity of dual Toeplitz operators on the orthogonal complement of the Bergman space over the unit disk, dual Toeplitz operators on the orthogonal complement of analytic function spaces have ...
CAO Guangfu, YU Siqi
doaj  

Heat and Laplace type equations with complex spatial variables in weighted Fock spaces

open access: yesElectronic Journal of Differential Equations, 2020
In a recent book co-authored by the authors of this article, we studied by semigroup theory methods several classical evolution equations, including the heat and Laplace equations, with real time variable and complex spatial variable, under the ...
Ciprian G. Gal, Sorin G. Gal
doaj  

Deformed Fock spaces, Hecke operators and monotone Fock space of Muraki

open access: yesDemonstratio Mathematica, 2012
Abstract The main purpose of this paper is to extend our previous construction of T-Fock spaces from a given Yang–Baxter operator satisfying the inequalities −1 ≤ T ≤ 1 to the constructions of T-symmetric Fock spaces related to the class of Yang–Baxter–Hecke operators meeting a weaker condition that T ≥ −1.
openaire   +1 more source

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