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A system initially far from equilibrium is expected to take more time to reach equilibrium than a system that was initially closer to equilibrium. The old puzzling observation (also called Mpemba effect) that when a sample of hot water and…

统计力学 · 物理学 2010-11-18 P. Chaddah , S. Dash , Kranti Kumar , A. Banerjee

A hot Markovian system can cool down faster than a colder one: this is known as the Mpemba effect. Here, we show that a non-equilibrium driving via stochastic reset can induce this phenomenon, when absent. Moreover, we derive an optimal…

统计力学 · 物理学 2021-10-08 Daniel Maria Busiello , Deepak Gupta , Amos Maritan

The Mpemba effect occurs when two samples at different initial temperatures evolve in such a way that the temperatures cross each other during the relaxation towards equilibrium. In this paper we show the emergence of a Mpemba-like effect…

统计力学 · 物理学 2021-05-17 Rubén Gómez González , Nagi Khalil , Vicente Garzó

The Mpemba effect, broadly understood as the counterintuitive phenomenon in which a system initially farther from equilibrium relaxes faster than a system closer to equilibrium, has been widely studied in classical stochastic systems and,…

量子气体 · 物理学 2026-04-08 Sumita Datta

The Empemba effect (ME) is investigated in the context of ubiquitous quantum oscillating and two-level systems (TLS) using a novel approach (DOI 10.1088/1402-4896/ad97f1). Exact reduced density matrices for various initial states are…

量子物理 · 物理学 2025-09-03 Fardin Kheirandish , Narges Cheraghpour , Adam Moradian

A recent promising arena for quantum advantage is simulating exponentially large classical systems. Here, we show how this advantage can be used to calculate the dynamics of open classical systems experiencing dissipation, including the…

量子物理 · 物理学 2025-03-17 Agi Villanyi , Yariv Yanay , Ari Mizel

The quantum Mpemba effect concerns with anomalous relaxation of quantum states that evolves either under unitary or non-unitary dynamics. In the context of open quantum systems, while most studies focus on quantum states evolving under…

统计力学 · 物理学 2026-05-19 Pitambar Bagui , Bijay Kumar Agarwalla

The quantum Pontus-Mpemba effect (QPME) is a counterintuitive phenomenon wherein a quantum system relaxes more rapidly through a two-step evolution protocol than through direct evolution under a symmetric Hamiltonian alone. In this…

量子物理 · 物理学 2026-04-13 Hui Yu , Jiangping Hu , Shi-Xin Zhang

We present a detailed study of the quantum dissipative dynamics of a charged particle in a magnetic field. Our focus of attention is the effect of dissipation on the low- and high-temperature behavior of the specific heat at constant…

统计力学 · 物理学 2015-05-14 S. Dattagupta , Jishad Kumar , S. Sinha , P. A. Sreeram

I suggest that the origin of the Mpemba effect (the freezing of hot water before cold) is freezing-point depression by solutes, either gaseous or solid, whose solubility decreases with increasing temperature so that they are removed when…

化学物理 · 物理学 2017-01-30 J. I. Katz

For quicker formation of ice, before inserting inside a refrigerator, heating up of a body of water can be beneficial. We report first observation of a counterpart of this intriguing fact, referred to as the Mpemba effect (ME), during…

统计力学 · 物理学 2022-10-07 Nalina Vadakkayil , Subir K. Das

Adiabatic quantum computation is a paradigmatic model aiming to solve a computational problem by finding the many-body ground state encapsulating the solution. However, its use of an adiabatic evolution depending on the spectral gap of an…

量子物理 · 物理学 2024-06-13 Jaeyoon Cho

The quantum Mpemba effect (QMPE), an anomalous relaxation phenomenon, has been demonstrated in both closed and open Hermitian quantum systems. While some studies have linked the QMPE to Liouvillian exceptional points--non-Hermitian features…

量子物理 · 物理学 2025-12-16 Wanchen Ma , Junjie Liu

In the 1960s, Tanzanian student Erasto Mpemba and his teacher published an article with the title "Cool" in the journal Physics Education (Mpemba, E. B. - Osborne, D. G.: Cool?. In: Physics Education, vol.4, 1969, pp. 172-175.). In this…

物理教育 · 物理学 2015-06-05 Marek Balazovic , Boris Tomasik

Recently, a novel probe to study symmetry breaking, known as entanglement asymmetry, has emerged and has been utilized to explore how symmetry is dynamically restored following quantum quenches. Interestingly, it has been shown that, in…

统计力学 · 物理学 2025-03-27 Filiberto Ares , Vittorio Vitale , Sara Murciano

It is shown that quantum coherence is conserved in a principal system in the case that the system is coupled to a fast dissipating environment [arXiv:0709.0562]. The phenomenon is called the quantum wipe effect. Here, this effect is…

量子物理 · 物理学 2008-08-06 Robabeh Rahimi , Akira SaiToh , Mikio Nakahara

Monitoring a quantum system can profoundly alter its dynamical properties, leading to nontrivial emergent phenomena. In this work, we demonstrate that dynamical measurements strongly influence the evolution of symmetry in many-body quantum…

量子物理 · 物理学 2025-09-15 Giuseppe Di Giulio , Xhek Turkeshi , Sara Murciano

We demonstrated microwave-induced cooling in a superconducting flux qubit. The thermal population in the first-excited state of the qubit is driven to a higher-excited state by way of a sideband transition. Subsequent relaxation into the…

超导电性 · 物理学 2008-04-14 S. O. Valenzuela , W. D. Oliver , D. M. Berns , K. K. Berggren , L. S. Levitov , T. P. Orlando

We study the conditions under which a Mpemba-like effect emerges in granular gases of inelastic and rough hard disks driven by a class of thermostats characterized by the splitting of the noise intensity into translational and rotational…

软凝聚态物质 · 物理学 2022-10-12 Alberto Megías , Andrés Santos

Ergodicity-breaking and slow relaxation are intriguing aspects of nonequilibrium dynamics both in classical and in quantum settings. These phenomena are typically associated with phase transitions, e.g. the emergence of metastable regimes…

量子物理 · 物理学 2021-08-11 Federico Carollo , Antonio Lasanta , Igor Lesanovsky