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We define the entropy S and uncertainty function of a squeezed system interacting with a thermal bath, and study how they change in time by following the evolution of the reduced density matrix in the influence functional formalism. As…

量子物理 · 物理学 2014-11-18 D. Koks , A. Matacz , B. L. Hu

Relative entropy measure quantifying coherence, a key property of quantum system, is proposed recently. In this note, we investigate the maximally coherent state (MCS) with respect to relative entropy measure. %(denoted by $\mathcal…

量子物理 · 物理学 2015-07-17 Zhaofang Bai , Shuanping Du

We use the available two different self-consistent formulations of quasiparticle models and extend their applications for the description of quark gluon plasma (QGP) at non-vanishing baryon chemical potentials. The thermodynamical…

高能物理 - 唯象学 · 物理学 2015-03-17 P. K. Srivastava , S. K. Tiwari , C. P. Singh

The surprising recent discoveries of quasicrystals and their approximants in soft matter systems poses the intriguing possibility that these structures can be realized in a broad range of nano- and micro-scale assemblies. It has been…

软凝聚态物质 · 物理学 2012-01-10 Christopher R. Iacovella , Aaron S. Keys , Sharon C. Glotzer

We introduce the subdimensional entanglement entropy (SEE), defined on subdimensional entanglement subsystems (SESs) embedded in the bulk, as an entanglement-based probe of how geometry and topology jointly shape universal properties of…

强关联电子 · 物理学 2026-04-16 Meng-Yuan Li , Peng Ye

In this paper bulk viscosity is introduced to describe the effects of cosmic non-perfect fluid on the cosmos evolution and to build the unified dark energy (DE) with (dark) matter models. Also we derive a general relation between the bulk…

宇宙学与河外天体物理 · 物理学 2009-10-14 X. H. Meng , X. Dou

It is known that the long-range quantum entanglement exhibited in free fermion systems is sufficient to "thermalize" a small subsystem in that the subsystem reduced density matrix computed from a typical excited eigenstate of the combined…

统计力学 · 物理学 2025-02-18 G. C. Levine , B. A. Friedman

Long-range order in quantum many-body systems is usually associated with equilibrium situations. Here, we experimentally investigate the quasicondensation of strongly-interacting bosons at finite momenta in a far-from-equilibrium case. We…

Eigenstate Thermalization Hypothesis provides one picture of thermalization in a quantum system by looking at individual eigenstates. However, it is also important to consider how local observables reach equilibrium values dynamically.…

统计力学 · 物理学 2017-02-28 Cheng-Ju Lin , Olexei I. Motrunich

Finding Minimum Energy Configurations (MECs) is essential in fields such as physics, chemistry, and materials science, as they represent the most stable states of the systems. In particular, identifying such MECs in multi-component alloys…

材料科学 · 物理学 2025-01-27 Md Rajib Khan Musa , Yichen Qian , Jie Peng , David Cereceda

We investigate numerically the quasiparticle density of states $\varrho(E)$ for a two-dimensional, disordered superconductor in which both time-reversal and spin-rotation symmetry are broken. As a generic single-particle description of this…

介观与纳米尺度物理 · 物理学 2007-06-20 A. Mildenberger , F. Evers , A. D. Mirlin , J. T. Chalker

In this work we investigate generalized theories of gravity in the so-called configurational entropy (CE) context. We show, by means of this information-theoretical measure, that a stricter bound on the parameter of $f(R,T)$ brane models…

高能物理 - 理论 · 物理学 2016-03-23 R. A. C. Correa , P. H. R. S. Moraes

Quarkonium production in ultra-relativistic collisions plays a crucial role in probing the existence of hot QCD matter. This study explores quarkonia states dissociation and regeneration in the hot QCD medium while considering momentum…

高能物理 - 唯象学 · 物理学 2024-09-18 Captain R. Singh , Mohammad Yousuf Jamal , Raghunath Sahoo

In this report we consider the numerical simulations at finite temperature using lattice QCD data for the computation of the thermodynamical quantities including the pressure, energy density and the entropy density. These physical…

高能物理 - 唯象学 · 物理学 2008-11-26 David E. Miller

The problem of how complex quantum systems eventually come to rest lies at the heart of statistical mechanics. The maximum entropy principle put forward in 1957 by E. T. Jaynes suggests what quantum states one should expect in equilibrium…

We studied the effect of momentum space anisotropy on heavy quarkonium states using an extended magnetized effective fugacity quasiparticle model (EQPM). Both the real and imaginary part of the potential has been modified through the…

高能物理 - 唯象学 · 物理学 2023-06-02 Manohar Lal , Siddhartha Solanki , Rishabh Sharma , Vineet Kumar Agotiya

We present a description of the equation of state of strongly interacting matter within a quasi-particle model. The model is adjusted to lattice QCD data near the deconfinement temperature $T_c$. We compare in detail the excess pressure at…

高能物理 - 唯象学 · 物理学 2008-11-26 M. Bluhm , B. Kampfer , G. Soff

The $N$-qubit Dicke states $|D^N_k\rangle$, of Hamming-weight $k$, are a class of entangled states which play an important role in quantum algorithm optimization. We present a general calculation of entanglement entropy in Dicke states,…

量子物理 · 物理学 2023-11-27 William Munizzi , Howard J. Schnitzer

Heavy quarkonium is one of the most investigated probes of the medium produced in heavy-ion collisions. In the past few years progress has been made in the description of its in-medium dynamics from QCD. Non-relativistic EFTs in particular…

高能物理 - 唯象学 · 物理学 2013-04-25 Jacopo Ghiglieri

The mesoscopic properties of a plasma in a cylindrical magnetic field are investigated from the view point of test-particle dynamics. When the system has enough time and spatial symmetries, a Hamiltonian of a test particle is completely…

等离子体物理 · 物理学 2019-09-19 Shun Ogawa , Xavier Leoncini , Alexei Vasiliev , Xavier Garbet