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We show Zeeman-like splitting in the energy of spinors propagating in a background gravitational field, analogous to the spinors in an electromagnetic field, otherwise termed the Gravitational Zeeman Effect. These spinors are also found to…

广义相对论与量子宇宙学 · 物理学 2020-10-02 Banibrata Mukhopadhyay , Soumya Kanti Ganguly

Understanding gravity in the framework of quantum mechanics is one of the great challenges in modern physics. Along this line, a prime question is to find whether gravity is a quantum entity subject to the rules of quantum mechanics. It is…

We have analysed here the role of the geometric phase in dynamical mechanism of quantum phase transition in the transverse Ising model. We have investigated the system when it is driven at a fixed rate characterized by a quench time…

强关联电子 · 物理学 2015-05-19 B. Basu , P. Bandyopadhyay

The possible role of gravity in a noncommutative geometry is investigated. Due to the Moyal *-product of fields in noncommutative geometry, it is necessary to complexify the metric tensor of gravity. We first consider the possibility of a…

高能物理 - 理论 · 物理学 2009-10-31 J. W. Moffat

Quantum Geometrodynamics with intrinsic time development and momentric variables is presented. An underlying SU(3) group structure at each spatial point regulates the theory. The intrinsic time behavior of the theory is analyzed, together…

广义相对论与量子宇宙学 · 物理学 2015-08-12 Eyo Eyo Ita , Chopin Soo , Hoi-Lai Yu

Charge fluctuations of a large quantum dot coupled to a two-dimensional lead via a single-mode good Quantum Point Contact (QPC) and capacitively coupled to a back-gate, are investigated in the presence of a parallel magnetic field. The…

强关联电子 · 物理学 2009-11-07 Karyn Le Hur

Quantum state space is endowed with a metric structure and Riemannian monotone metric is an important geometric entity defined on such a metric space. Riemannian monotone metrics are very useful for information-theoretic and statistical…

量子物理 · 物理学 2016-04-12 Prasenjit Deb

Understanding how intrinsic decoherence affects the interplay between geometry, dynamics, and entanglement in quantum systems is a central challenge in quantum information science. In this work, we develop a unified framework that explores…

量子物理 · 物理学 2025-07-24 M. Yachi , B. Amghar , J. Elfakir , M. El Falaki , S. A. Chelloug , A. A Abd El-Latif , A. Slaoui

The problem of finding the quantum theory of the gravitational field, and thus understanding what is quantum spacetime, is still open. One of the most active of the current approaches is loop quantum gravity. Loop quantum gravity is a…

广义相对论与量子宇宙学 · 物理学 2016-10-19 Carlo Rovelli

Starting from recent results on the geometric formulation of quantum mechanics, we propose a new information geometric characterization of entanglement for spin network states in the context of quantum gravity. For the simple case of a…

广义相对论与量子宇宙学 · 物理学 2018-03-07 Goffredo Chirco , Fabio M. Mele , Daniele Oriti , Patrizia Vitale

In the same base setup as Sakharov's induced gravity, we investigate emergence of gravity in effective quantum field theories (QFT), with particular emphasis on the gauge sector in which gauge bosons acquire anomalous masses in proportion…

广义相对论与量子宇宙学 · 物理学 2021-02-24 Durmus Demir

We consider the resonant tunneling through a multi-level system. It is demonstrated that the resonant current displays quantum interference effects due to a possibility of tunneling through different levels. We show that the interference…

介观与纳米尺度物理 · 物理学 2009-11-10 S. A. Gurvitz

The space of quantum states can be endowed with a metric structure using the second order derivatives of the relative entropy, giving rise to the so-called Kubo-Mori-Bogoliubov inner product. We explore its geometric properties on the…

量子物理 · 物理学 2024-07-23 Harry J. D. Miller

An isolated classical chaotic system, when driven by the slow change of several parameters, responds with two reaction forces: geometric friction and geometric magnetism. By using the theory of quantum fluctuation relations we show that…

统计力学 · 物理学 2012-09-25 Michele Campisi , Sergey Denisov , Peter Hänggi

We study the electromagnetic (e.m.) conductivity of QGP in a magnetic background by lattice simulations with $N_f = 2+1$ dynamical rooted staggered fermions at the physical point. We study the correlation functions of the e.m.~currents at…

Geometric momentum is the appropriate momentum for a particle constrained to move on a curved surface, which depends on the extrinsic curvature and leads to observable effects, and curvature-induced quantum potentials appear for a…

量子物理 · 物理学 2025-10-01 Z. Li , L. Q. Lai

We study how the mass and magnetic moment of the quarks are dynamically generated in nonequilibrium quark matter. We derive the equal-time transport and constraint equations for the quark Wigner function in a magnetized quark model and…

高能物理 - 理论 · 物理学 2019-03-29 Shijun Mao , Dirk H. Rischke

We extend the Induced Matter Theory of gravity (IMT) to 5D curved spacetimes by using the Weitzenb\"ock representation of connections on a 5D curved spacetime. In this representation the 5D curvature tensor becomes null, so that we can make…

广义相对论与量子宇宙学 · 物理学 2022-06-29 Jesús Martín Romero , Mauricio Bellini

Quantum dynamics of anisotropic spin system with large spin moment in a swept magnetic field is theoretically investigated. Magnetic field of this type induces vortex static electrical field, that breaks down the axial symmetry and induces…

介观与纳米尺度物理 · 物理学 2007-05-23 A. K. Zvezdin

We present the geodesic nature and quantization of geometric shift vector in quantum systems, with the parameter space defined by the Bloch momentum, using the Wilson loop approach. Our analysis extends to include bosonic phonon drag shift…

材料科学 · 物理学 2024-06-18 Hua Wang , Kai Chang