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相关论文: Emergence of maximal acceleration from non-commuta…

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In this paper, we derive the non-commutative corrections to the maximal acceleration of a massive particle. Using the eight-dimensional kappa-deformed phase-space metric, we obtain the kappa-deformed maximal acceleration, valid up to first…

高能物理 - 理论 · 物理学 2020-12-23 E. Harikumar , Vishnu Rajagopal

In this paper, we derive the non-commutative corrections to the maximal acceleration in the Doplicher-Fredenhagen-Roberts (DFR) space-time and show that the effect of the non-commutativity is to decrease the magnitude of the value of the…

高能物理 - 理论 · 物理学 2022-09-07 E. Harikumar , Suman Kumar Panja , Vishnu Rajagopal

In this paper, we derive Lorentz force and Maxwell's equations on kappa-Minkowski space-time up to the first order in the deformation parameter. This is done by elevating the principle of minimal coupling to non-commutative space-time. We…

高能物理 - 理论 · 物理学 2012-02-10 E. Harikumar , T. Juric , S. Meljanac

In this paper, we study the effect of $\kappa$-deformation of the space-time on the response function of a uniformly accelerating detector coupled to a scalar field. Starting with $\kappa$-deformed Klein-Gordon theory, which is invariant…

高能物理 - 理论 · 物理学 2015-06-05 E. Harikumar , A. K. Kapoor , Ravikant Verma

We study the modification of Newton's second law, upto first order in the deformation parameter $a$, in the $\kappa$-space-time. We derive the deformed Hamiltonian, expressed in terms of the commutative phase space variables, describing the…

高能物理 - 理论 · 物理学 2010-12-09 E. Harikumar , A. K. Kapoor

We study the finite temperature Casimir effect for parallel plates in the $\kappa$-Minkowski space-time. Using the Matsubara formalism and imposing the Dirichlet boundary conditions on a massless $\kappa$-scalar field, we compute the…

高能物理 - 理论 · 物理学 2026-02-13 Suman Kumar Panja , Vishnu Rajagopal

In this paper, we study the power spectrum of the uniformly accelerating scalar field, obeying the $\kappa$-deformed Klein-Gordon equation. From this we obtain the $\kappa$-deformed corrections to the Unruh temperature, valid up to first…

高能物理 - 理论 · 物理学 2024-06-25 Vishnu Rajagopal

The $\kappa$-Minkoswki space-time provides a quantum noncommutative-deformation of the usual Minkowski space-time. However, a notion of causality is difficult to be defined in such a space with noncommutative time. In this paper, we define…

数学物理 · 物理学 2022-10-06 Nicolas Franco , Jean-Christophe Wallet

We present a new physical model that links the maximum speed of light with the minimal Planck scale into a maximal-acceleration Relativity principle in the spacetime tangent bundle and in phase spaces (cotangent bundle). Crucial in order to…

高能物理 - 理论 · 物理学 2007-05-23 Carlos Castro

In this paper, we present the results of our investigation on the modification of Zitterbewegung due to the noncommutativity of the space-time. First, we study the effect of $\kappa$-deformation of the space-time on Zitterbewegung. For…

综合物理 · 物理学 2017-04-19 Ravikant Verma , Aritra N Bose

In this paper, we derive corrections to the geodesic equation due to the $k$-deformation of curved space-time, up to the first order in the deformation parameter a. This is done by generalizing the method from our previous paper [31], to…

高能物理 - 理论 · 物理学 2013-12-16 E. Harikumar , T. Juric , S. Meljanac

We study the commutators of the kappa-deformed Poincare Algebra (kappaPA) in an arbitrary basis. It is known that the two recently studied doubly special relativity theories correspond to different choices of kappaPA bases. We present…

高能物理 - 理论 · 物理学 2007-05-23 S. Kalyana Rama

We generalise the entropic force description of gravity into $\kappa$-Minkowski space-time and derive the $\kappa$-deformed corrections to the Newton's gravitational force. Using this we show the appearance of logarithmic correction as the…

广义相对论与量子宇宙学 · 物理学 2025-07-01 Vishnu Rajagopal , Puxun Wu

Considering space--time to be non-commutative, we study the evolution of the universe employing the approach of Newtonian cosmology. Generalizing the conservation of energy and the first law of thermodynamics to $\kappa$-deformed…

广义相对论与量子宇宙学 · 物理学 2023-07-31 E. Harikumar , Harsha Sreekumar , Suman Kumar Panja

In kappa-deformed relativistic framework we consider three different definitions of kappa-deformed velocities and introduce corresponding addition laws. We show that one of the velocities has classical relativistic addition law. The…

高能物理 - 理论 · 物理学 2007-05-23 Jerzy Lukierski , Anatol Nowicki

In this paper, we derive the Dirac equation in the $\kappa$-deformed Minkowski space-time. We start with $\kappa$-deformed Minkowski space-time and investigate the undeformed $\kappa$-Lorentz transformation valid to all order in the…

高能物理 - 理论 · 物理学 2014-11-03 Ravikant Verma

We discuss astrophysical implications of $\kappa$-Minkowski space-time, in which there appears space-time noncommutativity. We first derive a velocity formula for particles based on the motion of a wave packet. The result is that a massless…

广义相对论与量子宇宙学 · 物理学 2009-11-07 Takashi Tamaki , Tomohiro Harada , Umpei Miyamoto , Takashi Torii

In this letter, we derive the path integral action of a particle in $\kappa$-Minkowski spacetime. The equation of motion for an arbitrary potential due to the $\kappa$-deformation of the Minkowski spacetime is then obtained. The action…

综合物理 · 物理学 2018-06-27 Ravikant Verma , Debabrata Ghorai , Sunandan Gangopadhyay

Kappa-Minkowski space-time is an example of noncommutative space-time with potentially interesting phenomenology. However, the construction of field theories on this space is plagued with ambiguities. We propose to resolve certain…

高能物理 - 理论 · 物理学 2015-06-03 Marija Dimitrijevic , Larisa Jonke

The non-commutative geometry offers an effective framework for describing physics at the Planck scale, incorporating generic quantum-gravitational effects through an intrinsic minimal length and the $\kappa$-deformed space-time stands out…

高能物理 - 理论 · 物理学 2025-11-17 Vishnu Rajagopal , Puxun Wu
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