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k-Component q-deformed charge coherent states are constructed, their (over)completeness proved and their generation explored. The q-deformed charge coherent states and the even (odd) q-deformed charge coherent states are the two special…

Quantum Physics · Physics 2009-11-11 X. -M. Liu , C. Quesne , F. Song

Well-defined nonlinear deformations of free quantum fields are introduced as manifestly Poincar\'e invariant scaling and resonance properties of non-dynamical scale models in Minkowski space, instead of introducing nonlinear dynamical…

Quantum Physics · Physics 2019-11-21 Peter Morgan

We consider the deformed Bose gas model with the deformation structure function that is the combination of a q-deformation and a quadratically polynomial deformation. Such a choice of the unifying deformation structure function enables us…

Mathematical Physics · Physics 2013-12-20 A. M. Gavrilik , Yu. A. Mishchenko

With the successes of the Laser Interferometer Gravitational-wave Observatory, we anticipate increased interest in working with squeezed states in the undergraduate and graduate quantum-mechanics classroom. Because squeezed-coherent states…

Quantum Physics · Physics 2021-09-01 Eduardo Munguia-Gonzalez , Sheldon Rego , J. K. Freericks

In this paper, the quantization and generalized uncertainty relation for some quantum deformed algebras are investigated. For several deformed algebras, the commutation relation between the position and the momentum operator is shown to be…

Quantum Physics · Physics 2015-03-13 Won Sang Chung

In recent years, many new developments in theoretical physics, and in practical applications rely on different techniques of noncommutative algebras. In this review, we introduce the basic concepts and techniques of noncommutative physics…

High Energy Physics - Theory · Physics 2023-06-08 Shi-Dong Liang , Matthew J. Lake

We construct the exact position representation of a deformed quantum mechanics which exhibits an intrinsic maximum momentum and use it to study problems such as a particle in a box and scattering from a step potential, among others. In…

High Energy Physics - Theory · Physics 2012-07-09 Chee-Leong Ching , Rajesh Parwani

We show that a possible violation of the Robertson-Schr\"odinger uncertainty principle may signal the existence of a deformation of the Heisenberg-Weyl algebra. More precisely, we prove that any Gaussian in phase-space (even if it violates…

High Energy Physics - Theory · Physics 2015-06-05 Catarina Bastos , Orfeu Bertolami , Nuno Costa Dias , João Nuno Prata

Bosonic two-mode squeezed states are paradigmatic entangled Gaussian states that have wide utility in quantum information and metrology. Here, we show that the basic structure of these states can be generalized to arbitrary bipartite…

Quantum Physics · Physics 2025-02-27 Mikhail Mamaev , Martin Koppenhöfer , Andrew Pocklington , Aashish A. Clerk

Non-Gaussian states, and specifically the paradigmatic Schr\"odinger cat state, are well-known to be very sensitive to losses. When propagating through damping channels, these states quickly loose their non-classical features and the…

Quantum Physics · Physics 2018-02-15 H. Le Jeannic , A. Cavaillès , K. Huang , R. Filip , J. Laurat

The 1+1 dimensional bosonised Schwinger model has been studied in a noncommutative scenario. The theory in the reduced phase space exhibits a massive boson interacting with a background. The emergence of this background interaction is a…

High Energy Physics - Theory · Physics 2010-11-05 Anirban Saha , Anisur Rahaman , Pradip Mukherjee

We study the representations of the three-dimensional Euclidean Snyder-de Sitter algebra. This algebra generates the symmetries of a model admitting two fundamental scales (Planck mass and cosmological constant) and is invariant under the…

High Energy Physics - Theory · Physics 2016-02-24 S. Mignemi , R. Strajn

In two-dimensional noncommutive space for the case of both position-position and momentum-momentum noncommuting, the constraint between noncommutative parameters on the quantum gravitational well is investigated. The related topic of…

High Energy Physics - Theory · Physics 2007-05-23 Jian-Zu Zhang

Based on the vanishing of the second Hochschild cohomology group of the enveloping algebra of the Heisenberg algebra it is shown that differential algebras coming from quantum groups do not provide a non-trivial deformation of quantum…

q-alg · Mathematics 2009-10-28 Mathias Pillin

We provide a deformation quantization, in the sense of Rieffel, for \textit{all} globally hyperbolic spacetimes with a Poisson structure. The Poisson structures have to satisfy Fedosov type requirements in order for the deformed product to…

General Relativity and Quantum Cosmology · Physics 2024-07-08 Albert Much

A class of well-behaved *-representations of a q-deformed Heisenberg algebra is studied and classified.

Quantum Algebra · Mathematics 2009-10-31 Konrad Schmuedgen

Operators, refered to as k-fermion operators, that interpolate between boson and fermion operators are introduced through the consideration of two noncommuting quon algebras. The deformation parameters for these quon algebras are roots of…

Quantum Physics · Physics 2007-05-23 M. Daoud , Y. Hassouni , M. Kibler

Relativistic deformed kinematics leads to a loss of the absolute locality of interactions. In previous studies, some models of noncommutative spacetimes in a two-particle system that implements locality were considered. In this work, we…

High Energy Physics - Theory · Physics 2025-04-07 J. J. Relancio

We introduce twisted Fock representations of noncommutative K\"ahler manifolds and give their explicit expressions. The twisted Fock representation is a representation of the Heisenberg like algebra whose states are constructed by acting…

Mathematical Physics · Physics 2016-05-23 Akifumi Sako , Hiroshi Umetsu

The classical and quantal features of a quadrupole coherent state and its projections over angular momentum and boson number are quantitatively analyzed in terms of the departure of the Heisenberg uncertainty relations from the classical…

Nuclear Theory · Physics 2015-06-12 A. A. Raduta , C. M. Raduta