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We generalize the fermionic coherent states to the case of Fock-Krein spaces, i.e., Fock spaces with an idefinite inner product of Krein type. This allows for their application in topological or functorial quantum field theory and more…

Mathematical Physics · Physics 2018-06-28 Robert Oeckl

We study the relationships among the various forms of the $q$ oscillator algebra and consider the conditions under which it supports a Hopf structure. We also present a generalization of this algebra together with its corresponding Hopf…

High Energy Physics - Theory · Physics 2009-10-28 C. H. Oh , K. Singh

In this work we describe semiclassical states in graphene under a constant perpendicular magnetic field by constructing coherent states in the Barut-Girardello sense. Since we want to keep track of the angular momentum, the use of the…

Mesoscale and Nanoscale Physics · Physics 2021-07-13 Erik Díaz-Bautista , Javier Negro , Luis Miguel Nieto

A new oscillator-like system called by the Legendre oscillator is introduced in this note. The two families of coherent states (coherent states as eigenvectors of the annihilation operator and the Klauder-Gazeau temporally stable coherent…

Quantum Algebra · Mathematics 2007-05-23 V. V. Borzov , E. V. Damaskinsky

The usual position-momentum commutation relation plays a fundamental role in the mathematical description of continuous-variable quantum systems. In the case of a qudit described by a Hilbert space of a high enough dimension, there exists a…

Quantum Physics · Physics 2026-02-05 Nicolae Cotfas

The three approaches to relativistic generalization of coherent states are discussed in the simplest case of a spinless particle: the standard, canonical coherent states, the Lorentzian states and the coherent states introduced by Kaiser…

Quantum Physics · Physics 2019-03-27 K. Kowalski , J. Rembielinski , J. -P. Gazeau

In the spirit of some earlier work on the construction of vector coherent states over matrix domains, we compute here such states associated to some physical Hamiltonians. In particular, we construct vector coherent states of the…

Quantum Physics · Physics 2009-11-10 S. Twareque Ali , F. Bagarello

In this paper we study the quantum phase properties of {\it "nonlinear coherent states"} and {\it "solvable quantum systems with discrete spectra"} using the Pegg-Barnett formalism in a unified approach. The presented procedure will then be…

Quantum Physics · Physics 2010-11-11 G. R. Honarasa , M. K. Tavassoly , M. Hatami

A new kind of q-deformed charged coherent states is constructed in Fock space of two-mode q-boson system with su_{q}(2) covariance and a resolution of unity for these states is derived. We also present a simple way to obtain these coherent…

High Energy Physics - Theory · Physics 2009-11-10 Yun Li , Sicong Jing

Using the natural extension of the notion of the generalized coherent states the scalar and spinor ones for the de Sitter group SO(4,1) are constructed. These systems of coherent states obey the de Sitter--invariant Klein-Gordon and Dirac…

High Energy Physics - Theory · Physics 2009-10-31 Semyon Pol'shin

We present the q-deformed ^M para-bose oscillators associated with (two-body) Calogero model.^M q-deformed coherent state is also constructed and its resolution of unity ^M is demonstrated.

High Energy Physics - Theory · Physics 2009-10-22 K. H. Cho , Chaiho Rim , D. S. Soh , S. U. Park

This paper is the survey of some of our results related to $q$-deformations of the Fock spaces and related to $q$-convolutions for probability measures on the real line $\mathbb{R}$. The main idea is done by the combinatorics of moments of…

Mathematical Physics · Physics 2024-02-16 Marek Bozejko , Wojciech Bozejko

Using noncocommutative coproduct properties of the quantum algebras, we introduce and obtain, in a bipartite composite system, the Barut-Girardello coherent state for the q-deformed $su_{q}(1,1)$ algebra. The quantum coproduct structure…

Quantum Algebra · Mathematics 2010-04-05 R. Chakrabarti , S. S. Vasan

We introduce new families of pure quantum states that are constructed on top of the well-known Gilmore-Perelomov group-theoretic coherent states. We do this by constructing unitaries as the exponential of operators quadratic in Cartan…

Quantum Physics · Physics 2021-05-12 Tommaso Guaita , Lucas Hackl , Tao Shi , Eugene Demler , J. Ignacio Cirac

The q-Hermite I-Sobolev type polynomials of higher order are consider for their study. Their hypergeometric representation is provided together with further useful properties such as several structure relations which give rise to a…

Classical Analysis and ODEs · Mathematics 2021-06-28 Carlos Hermoso , Edmundo J. Huertas , Alberto Lastra , Anier Soria-Lorente

We construct a class of generalized nonlinear coherent states by means of a newly obtained class of 2D complex orthogonal polynomials. The associated coherent states transform is discussed. A polynomials realization of the basis of the…

Mathematical Physics · Physics 2019-01-01 S. Twareque Ali , Zouhaïr Mouayn , Khalid Ahbli

The quadrature distribution for the quantum damped oscillator is introduced in the framework of the formulation of quantum mechanics based on the tomography scheme. The probability distribution for the coherent and Fock states of the damped…

Quantum Physics · Physics 2011-04-15 S. S. Safonov

We study some properties of the $SU(1,1)$ Perelomov number coherent states. The Schr\"odinger's uncertainty relationship is evaluated for a position and momentum-like operators (constructed from the Lie algebra generators) in these number…

Mathematical Physics · Physics 2016-11-01 D. Ojeda-Guillén , M. Salazar-Ramirez , R. D. Mota , V. D. Granados

Exact coherent states in the Calogero-Sutherland models (of time-dependent parameters) which describe identical harmonic oscillators interacting through inverse-square potentials are constructed, in terms of the classical solutions of a…

Quantum Physics · Physics 2009-11-07 Dae-Yup Song , JeongHyeong Park

While dealing with a class of generalized Bergman spaces on the unit ball, we construct for each of these spaces a set of coherent states to apply a coherent states quantization method. This provides us with another way to recover the…

Functional Analysis · Mathematics 2012-05-08 A. Boussejra , Z. Mouayn