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A class of generalized coherent states with a new type of the identity resolution are constructed by replacing the labeling parameter zn/n! of the canonical coherent states by Meixner-Pollaczek polynomials with specific parameters. The…

Mathematical Physics · Physics 2015-05-18 Zouhair Mouayn

A vector field s on a Riemannian manifold M is said to be harmonic if there exists a member of a 2-parameter family of generalised Cheeger-Gromoll metrics on TM with respect to which s is a harmonic section. If M is a simply-connected…

Differential Geometry · Mathematics 2013-01-28 M. Benyounes , E. Loubeau , C. M. Wood

We investigate the connection between quasi-classical (pointer) states and generalized coherent states (GCSs) within an algebraic approach to Markovian quantum systems (including bosons, spins, and fermions). We establish conditions for the…

Quantum Physics · Physics 2008-01-23 Sergio Boixo , Lorenza Viola , Gerardo Ortiz

We construct a class of generalized phase coherent states indexed by points of the unit circle and depending on three positive parameters "gamma","alpha" and "epsilon" by replacing the labelling coefficients of the canonical coherent states…

Mathematical Physics · Physics 2015-05-28 Zouhair Mouayn

The construction of a class of unitary operators generating linear superpositions of generalized coherent states from the ground state of a quantum harmonic oscillator is reported. Such a construction, based on the properties of a new ad…

Quantum Physics · Physics 2013-06-13 Antonino Messina , Gheorghe Draganescu

Harmonic oscillator coherent states are well known to be the analogue of classical states. On the other hand, nonlinear and generalised coherent states may possess nonclassical properties. In this article, we study the nonclassical…

Quantum Physics · Physics 2016-06-02 Anaelle Hertz , Sanjib Dey , Véronique Hussin , Hichem Eleuch

We consider Vinberg $\theta$-groups associated to a cyclic quiver on $k$ nodes. Let $K$ be the product of the general linear groups associated to each node. Then $K$ acts naturally on $\oplus \text{Hom}(V_i, V_{i+1})$ and by Vinberg's…

Representation Theory · Mathematics 2024-02-27 Andrew Frohmader , Alexander Heaton

We revisit the quantized version of the harmonic oscillator obtained through a q-dependent family of coherent states. For each q, 0< q < 1, these normalized states form an overcomplete set that resolves the unity with respect to an explicit…

Mathematical Physics · Physics 2015-06-05 J. P. Gazeau , M. A. del Olmo

We extend the coherent state transform (CST) of Hall to the context of the moduli spaces of semistable holomorphic vector bundles with fixed determinant over elliptic curves. We show that by applying the CST to appropriate distributions, we…

Algebraic Geometry · Mathematics 2021-10-19 C. Florentino , J. Mourao , J. P. Nunes

Coherent states for equally spaced, homogeneous waveguide arrays are defined, in the infinite, semiinfinite and finite cases, and resolutions of the identity are constructed, using different methods. In the infinite case, which corresponds…

Quantum Physics · Physics 2021-12-06 Julio Guerrero , Héctor M. Moya-Cessa

Coherent states are required to form a complete set of vectors in the Hilbert space by providing the resolution of identity. We study the completeness of coherent states for two different models in a noncommutative space associated with the…

Mathematical Physics · Physics 2018-01-16 Sanjib Dey

We provide a unified approach for finding the coherent states of various deformed algebras, including quadratic, Higgs and q-deformed algebras, which are relevant for many physical problems. For the non-compact cases, coherent states, which…

Quantum Physics · Physics 2007-05-23 V. Sunilkumar , B. A. Bambah , P. K. Panigrahi , V. Srinivasan

We study numerically the coordinate wave functions and the Wigner functions of the coherent phase states (CPS), paying the main attention to their differences from the standard (Klauder--Glauber--Sudarshan) coherent states, especially in…

Quantum Physics · Physics 2022-11-14 Miguel Citeli de Freitas , Viktor V. Dodonov

Inspired by ER=EPR conjecture we present a mathematical tool providing a link between quantum entanglement and the geometry of spacetime. We start with the idea of operators in extended Hilbert space which, by definition, has no positive…

High Energy Physics - Theory · Physics 2019-08-30 Grzegorz Plewa

The purposes of this work are (1) to show that the appropriate generalizations of the oscillator algebra permit the construction of a wide set of nonlinear coherent states in unified form; and (2) to clarify the likely contradiction between…

Quantum Physics · Physics 2018-04-17 Kevin Zelaya , Oscar Rosas-Ortiz , Zurika Blanco-Garcia , Sara Cruz y Cruz

The covariant quantization and light cone quantization formalisms are followed to construct the coherent states of both open and closed bosonic strings. We make a systematic and straightforward use of the original definition of coherent…

High Energy Physics - Theory · Physics 2021-09-23 Mir Hameeda , M. C. Rocca

It is shown here and in the preceeding paper (quant-ph/0201129) that vector coherent state theory, the theory of induced representations, and geometric quantization provide alternative but equivalent quantizations of an algebraic model. The…

Quantum Physics · Physics 2007-05-23 Stephen D. Bartlett , David J. Rowe , Joe Repka

In the frame of our approach we constructed the generalized oscillator connected with Krawtchouk polynomials (named Krawtchouk oscillator) and coherent states for this oscillator too. Ours results are compared with analogues ones obtained…

Mathematical Physics · Physics 2007-05-23 V. V. Borzov , E. V. Damaskinsky

On the basis of the f-deformed oscillator formalism, we propose to construct nonlinear coherent states for Hamiltonian systems having linear and quadratic terms in the the number operator by means of the two following definitions: i) as…

Quantum Physics · Physics 2015-12-03 R. Román-Ancheyta , J. Récamier

Random tensor networks provide useful models that incorporate various important features of holographic duality. A tensor network is usually defined for a fixed graph geometry specified by the connection of tensors. In this paper, we…

High Energy Physics - Theory · Physics 2017-09-13 Xiao-Liang Qi , Zhao Yang , Yi-Zhuang You