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相关论文: Gravitational Quantum Well

200 篇论文

We study noncommutative geometry at the Quantum Mechanics level by means of a model where noncommutativity of both configuration and momentum spaces is considered. We analyze how this model affects the problem of the two-dimensional…

高能物理 - 理论 · 物理学 2009-11-11 O. Bertolami , J. G. Rosa , C. M. L. de Aragão , P. Castorina , D. Zappalà

A planar phase space having both position and momentum noncommutativity is defined in a more inclusive setting than that considered elsewhere. The dynamics of a particle in a gravitational quantum well in this space is studied. The use of…

高能物理 - 理论 · 物理学 2008-11-26 Rabin Banerjee , Binayak Dutta Roy , Saurav Samanta

The representations of position and momentum operators of a planar phase space having both position and momentum noncommutativity are obtained. Using these representations the dynamics of a particle in a gravitational quantum well is…

高能物理 - 理论 · 物理学 2008-04-02 Saurav Samanta

A thorough analysis of Galilean symmetries for the gravitational well problem on a noncommutative plane is presented. A complete closure of the one-parameter centrally extended Galilean algebra is realised for the model. This implies that…

高能物理 - 理论 · 物理学 2013-01-15 Anirban Saha

A novel approach to the analysis of the gravitational well problem from a second quantised description has been discussed. The second quantised formalism enables us to study the effect of time space noncommutativity in the gravitational…

高能物理 - 理论 · 物理学 2008-11-26 Anirban Saha

This work is mainly based on some theoretical surveys on two dimensional quantum gravitational well, considering harmonic oscillator potential causes an effective plank constant. We find that there is a similarity between two different…

量子物理 · 物理学 2016-06-01 Farhad Zekavat

We study the transition between quantum and classical behavior of particles in a gravitational quantum well. We analyze how an increase in the particles mass turns the energy spectrum into a continuous one, from an experimental point of…

高能物理 - 唯象学 · 物理学 2011-08-04 O. Bertolami , J. G. Rosa

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…

高能物理 - 理论 · 物理学 2007-05-23 Jian-Zu Zhang

In this paper we consider two kinds of noncommutative space-time commutation relations in two-dimensional configuration space and feature the absolute value of the minimal length from the generalized uncertainty relations associated to the…

量子物理 · 物理学 2017-10-30 Latevi Lawson , Laure Gouba , Gabriel Y Avossevou

More recently, we have proposed a set of noncommutative space that describes the quantum gravity at the Planck scale [J. Phys. A: Math. Theor. 53, 115303 (2020)]. The interesting significant result we found is that, the generalized…

高能物理 - 理论 · 物理学 2022-02-01 Latévi Mohamed Lawson

In this work some issues in the context of Noncommutative Quantum Mechanics (NCQM) are addressed. The main focus is on finding whether symmetries present in Quantum Mechanics still hold in the phase-space noncommutative version. In…

广义相对论与量子宇宙学 · 物理学 2015-09-30 O. Bertolami , P. Leal

Trying to connect a fundamentally non-commutative spacetime with the conservative perturbative approach to quantum gravity, we are led to the natural question: are non-commutative geometrical effects already present in the regime where…

广义相对论与量子宇宙学 · 物理学 2023-04-20 Markus Fröb , Albert Much , Kyriakos Papadopoulos

We study the free-fall of a quantum particle in the context of noncommutative quantum mechanics (NCQM). Assuming noncommutativity of the canonical type between the coordinates of a two-dimensional configuration space, we consider a neutral…

高能物理 - 理论 · 物理学 2011-06-02 K. H. C. Castello-Branco , A. G. Martins

We present a phase-space noncommutative version of quantum mechanics and apply this extension to Quantum Cosmology. We motivate this type of noncommutative algebra through the gravitational quantum well (GQW) where the noncommutativity…

高能物理 - 理论 · 物理学 2015-05-13 Catarina Bastos , Orfeu Bertolami , Nuno Dias , Joao Nuno Prata

Complicated time-dependent curved spacetime and electric field are involved in many astrophysical situations, including the early universe, Hawking radiation, the Schwinger effect, and gravitational pair production. In this Letter, a…

A new family of 2-component vector-valued coherent states for the quantum particle motion in an infinite square well potential is presented. They allow a consistent quantization of the classical phase space and observables for a particle in…

量子物理 · 物理学 2009-11-13 P. L. Garcia de Leon , J. P. Gazeau , J. Queva

The dynamics of a particle in a gravitational quantum well is studied in the context of nonrelativistic quantum mechanics with a particular deformation of a two-dimensional Heisenberg algebra. This deformation yields a new short-distance…

高能物理 - 理论 · 物理学 2008-11-26 F. Brau , F. Buisseret

We consider the quantum mechanical behavior of a driven particle in an infinite 1D potential well. We show that the time dependent perturbation series is induced by the delicate non-trivial properties of the momentum operator in this case,…

凝聚态物理 · 物理学 2008-02-03 Eli Eisenberg , Nadav Shnerb , Rachel Avigur

There ought to exist a reformulation of quantum mechanics which does not refer to an external classical spacetime manifold. Such a reformulation can be achieved using the language of noncommutative differential geometry. A consequence which…

广义相对论与量子宇宙学 · 物理学 2008-11-26 T. P. Singh

We highlight the fact that the lack of scale invariance in the gravitational field equations of General Relativity results from the underlying assumption that the appropriate scale for the gravitational force should be linked to the atomic…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Robin Booth
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