Results 151 to 160 of about 5,233,673 (285)

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

Intramolecular Matere Bonds in Isostructural Rubidium (18‐Crown‐6) Pertechnetate and Perrhenate Dimers

open access: yesEuropean Journal of Inorganic Chemistry, Volume 29, Issue 16, 4 June 2026.
Two rubidium cations that are not fully encapsulated by 18‐crown‐6 are bridged by two pertechnetate units to form a dimer. These two pertechnetate units are nearly linearly aligned to each other to form Matere bonds (MaBs), a type of noncovalent σ‐hole interaction.
Clarence Yong   +7 more
wiley   +1 more source

Extended State Space for describing renormalized Fock spaces in QFT

open access: yes, 2022
In quantum field theory (QFT) models, it often seems natural to use, instead of wave functions from Fock space, wave functions that are not square-integrable and have prefactors involving divergent integrals (known as infinite wave function ...
Lill, Sascha, LIll, S.
core  

On energy and particle production in cosmology: the particular case of the gravitino

open access: yesJournal of High Energy Physics
It is well-known that the number of particles produced in cosmology, commonly defined in the literature from the Fock space of the instantaneous hamiltonian of the canonically normalized fields, is ambiguous.
Gabriele Casagrande   +2 more
doaj   +1 more source

On the Meaning of Localization in Non‐Local Quantum Field Theory

open access: yesAnnalen der Physik, Volume 538, Issue 6, June 2026.
In non‐local quantum field theory nature does not necessarily allow objects or events to be localized to exact mathematical points. Instead any physical measurement has a built‐in finite resolution set by the non‐locality scale. Spacetime remains continuous and Lorentz‐covariant, but below this scale pointlike localization becomes an idealization ...
E. J. Thompson
wiley   +1 more source

A Hybrid Semi‐Inverse Variational and Machine Learning Approach for the Schrödinger Equation

open access: yesAdvanced Physics Research, Volume 5, Issue 6, June 2026.
A hybrid semi‐inverse variational and machine‐learning framework is presented for solving the Schrödinger equation with complex quantum potentials. Physics‐based variational solutions generate high‐quality training data, enabling Random Forest and Neural Network models to deliver near‐perfect energy predictions.
Khalid Reggab   +5 more
wiley   +1 more source

Fock space methods and large N

open access: yes, 2007
Ideas and techniques (asymptotic decoupling of single-trace subspace, asymptotic operator algebras, duality and role of supersymmetry) relevant in current Fock space investigations of quantum field theories have very simple roles in a class of toy ...
ONOFRI, Enrico   +2 more
core   +1 more source

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

Exploring the Synthesis, Properties, and Applications of Molybdenum Disulfide (MoS2): A Comprehensive Review

open access: yesEngineering Reports, Volume 8, Issue 6, June 2026.
An overview of MoS2 synthesis methods, key physicochemical properties, and emerging applications in electronics, catalysis, and energy storage. ABSTRACT Among the transition metals, molybdenum disulfide (MoS2) is a highly recognized dichalcogenide that has gained significant attention for its diverse applications in electronics, catalysis, and energy ...
Andishe Shakery, Gholam Reza Khayati
wiley   +1 more source

PT-Symmetry in Hartree–Fock Theory

open access: yes, 2019
P T -symmetry — invariance with respect to combined space reflection P and time reversal T — provides a weaker condition than (Dirac) Hermiticity for ensuring a real energy spectrum of a general non-Hermitian Hamiltonian.
Alex, Thom   +2 more
core   +1 more source

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