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Radiation reaction is the influence of the electromagnetic field emitted by a charged particle on the dynamics of the particle itself. Here we report experimental radiation emission spectra from ultrarelativistic positrons in silicon in a…

高能物理 - 实验 · 物理学 2018-02-26 Tobias N. Wistisen , Antonino Di Piazza , Helge V. Knudsen , Ulrik I. Uggerhøj

We theoretically investigate a photosystem II-based reaction center modeled as a nonequilibrium quantum junction. We specifically focus on the electron-electron interactions that enable cotunneling events to be captured through quantum…

介观与纳米尺度物理 · 物理学 2024-10-16 Debasish Sharma , Manash Jyoti Sarmah , Mriganka Sandilya , Himangshu Prabal Goswami

We investigate the correlation properties in the steady state of driven-dissipative interacting bosonic systems in the quantum regime, as for example non-linear photonic cavities. Specifically, we consider the Bose-Hubbard model on a…

量子气体 · 物理学 2025-03-18 Martina Zündel , Leonardo Mazza , Léonie Canet , Anna Minguzzi

Thermalization in highly excited quantum many-body system does not necessarily mean a complete memory loss of the way the system was formed. This effect may pave a way for a quantum computing, with a large number of qubits $n\simeq…

量子物理 · 物理学 2008-12-19 M. Bienert , J. Flores , S. Yu. Kun , T. H. Seligman

By periodical two-step modulation, we demonstrate that the dynamics of multilevel system can still evolve even in multiple large detunings regime, and provide the effective Hamiltonian (of interest) for this system. We then illustrate this…

量子物理 · 物理学 2018-12-27 Zhi-Cheng Shi , Du Ran , Li-Tuo Shen , Yan Xia , X. X. Yi

Ultra-cold atomic systems are among the most promising platforms that have the potential to shed light on the complex behavior of many-body quantum systems. One prominent example is the case of a dense ensemble illuminated by a strong…

When matter is exposed to a high-intensity x-ray free-electron-laser pulse, the x rays excite inner-shell electrons leading to the ionization of the electrons through various atomic processes and creating high-energy-density plasma, i.e.,…

原子与分子团簇 · 物理学 2017-08-24 Malik Muhammad Abdullah , Anurag , Zoltan Jurek , Sang-Kil Son , Robin Santra

Many-body quantum-mechanical stationary states that have real valued wavefunctions are shown to satisfy a classical conservation of energy equation with a kinetic energy function. The terms in the equation depend on the probability…

原子物理 · 物理学 2021-07-23 James P. Finley

We investigate the quantum dynamics of energy and charge transfer in a wheel-shaped artificial photosynthetic antenna-reaction center complex.This complex consists of six light-harvesting chromophores and an electron-acceptor fullerene. To…

生物物理 · 物理学 2015-05-28 Pulak Kumar Ghosh , Anatoly Yu. Smirnov , Franco Nori

Charge separation in light-harvesting complexes occurs in a pair of tightly coupled chlorophylls at the heart of photosynthetic reaction centers of both plants and bacteria. Recently it has been shown that quantum coherence can, in…

生物物理 · 物理学 2016-11-28 M. Qin , H. Z Shen , X. X. Yi

Non-Markovian dynamics is studied for two interacting quibts strongly coupled to a dissipative bosonic environment. For the first time, we have derived the non-Markovian quantum state diffusion (QSD) equation for the coupled two-qubit…

量子物理 · 物理学 2011-09-07 Xinyu Zhao , Jun Jing , Brittany Corn , Ting Yu

A new analysis of the measurement problem reveals the possibility that collapse of the wavefunction may now take place just before photoisomerization of the rhodopsin molecule in the retinal rods. It is known that when a photon is initially…

量子物理 · 物理学 2008-04-17 Fred H. Thaheld

Despite several different measures of efficiency that are applicable to the photosynthetic systems, a precise degree of efficiency of these systems is not completely determined. Introducing an efficient model for the dynamics of…

化学物理 · 物理学 2020-06-24 Fatemeh Ghasemi , Afshin Shafiee

We analyze the quantum dynamics of a two-level emitter in a resonant microcavity with optical feedback provided by a distant mirror (i.e., a half-cavity) with a focus on stabilizing the emitter-microcavity subsystem. Our treatment is fully…

量子物理 · 物理学 2020-01-29 Chien-Yuan Chang , Loic Lanco , Pascale Senellart , David S. Citrin

A thermodynamically consistent particle-based model for fluid dynamics with continuous velocities and a non-ideal equation of state is presented. Excluded volume interactions are modeled by means of biased stochastic multiparticle…

软凝聚态物质 · 物理学 2009-11-11 Thomas Ihle , Erkan Tuzel , Daniel M. Kroll

We present a systematic mathematical analysis of the qualitative steady-state response to rate perturbations in large classes of reaction networks. This includes multimolecular reactions and allows for catalysis, enzymatic reactions,…

动力系统 · 数学 2017-11-22 Bernhard Brehm , Bernold Fiedler

We outline a relativistic and unfactorized framework to treat the final-state interactions in quasi-elastic A(e,e'p) reactions for four-momentum transfers Q$^{2} \gtrsim 0.3$ (GeV/c)$^{2}$. The model, which relies on the eikonal…

核理论 · 物理学 2009-11-07 D. Debruyne , J. Ryckebusch , S. Janssen , T. Van Cauteren

We study a stochastic system of $N$ interacting particles which models bimolecular chemical reaction-diffusion. In this model, each particle $i$ carries two attributes: the spatial location $X_t^i\in \mathbb{T}^d$, and the type $\Xi_t^i\in…

偏微分方程分析 · 数学 2020-01-24 Tau Shean Lim , Yulong Lu , James Nolen

Quantum synchronisation has recently been proposed as a mechanism for electronic excitation energy transfer in light-harvesting complexes, yet its robustness in driven-dissipative settings remains under active investigation. Here, we…

生物物理 · 物理学 2026-01-30 Wenhao Xu

Estimating transition rates in open quantum systems is hampered by computing-resource demands that grow rapidly with system size. We present a quantum-simulation framework that enables efficient estimation by recasting the transition rate,…

量子物理 · 物理学 2025-12-16 Robson Christie , Kyunghyun Baek , Jeongho Bang , Jaewoo Joo