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相关论文: Non-Hermitian electron-positron annihilation under…

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We consider the electron-positron annihilation process into hadrons $R_{e^+e^-}$ up to $\mathcal{O}(\alpha_{s}^{3})$ and we adopt the smearing method suggest by Poggio, Quinn and Weinberg to confront the experimental data with theory. As a…

高能物理 - 唯象学 · 物理学 2016-02-03 J. D. Gomez , A. A. Natale

The eigenstate thermalization hypothesis (ETH) has been highly influential in explaining thermodynamic behavior of closed quantum systems. As of yet, it is unclear whether and how the ETH applies to non-Hermitian systems. Here, we introduce…

Motivated by the recent findings on the $T$-linear electronic scattering rate in the two-dimensional Hubbard model, we have investigated the three-orbital Emery model and its temperature-dependent electronic and quasiparticle scattering…

强关联电子 · 物理学 2024-03-19 Tianzong Mao , Mi Jiang

Neutral particles can couple with the $U(1)$ gauge field in the adjoint representation at the tree level if the space-time coordinates are noncommutative (NC). Considering neutrino-photon coupling in the NC QED framework, we obtain the…

高能物理 - 唯象学 · 物理学 2011-07-22 M. M. Ettefaghi , T. Shakouri

We analyze high energy scattering for non-commutative field theories using the dual gravity description. We find that the Froissart-Martin bound still holds, but that cross-sections stretch in the non-commutative directions in a way…

高能物理 - 理论 · 物理学 2009-11-11 Jason Kumar , Arvind Rajaraman

The flow of a thermoelectric current through a semiconductor of submicron dimensions is analyzed. The rate of surface relaxation of the energy is assumed to be much higher than the rate of electron-electron collisions. Under these…

凝聚态物理 · 物理学 2007-05-23 Yu. G. Gurevich , G. N. Logvinov , O. Yu. Titov

Using a model calculation of dihadron fragmentation functions, we fit the spin asymmetry recently extracted by HERMES for the semi-inclusive pion pair production in deep-inelastic scattering on a transversely polarized proton target. By…

高能物理 - 唯象学 · 物理学 2009-03-12 Alessandro Bacchetta , Federico A. Ceccopieri , Asmita Mukherjee , Marco Radici

By studying the scattering process of scalar particle pion on the noncommutative scalar quantum electrodynamics, the non-commutative amendment of differential scattering cross-section is found, which is dependent of polar-angle and the…

高能物理 - 唯象学 · 物理学 2012-08-09 Jianhua wang , Kang Li , Sayipjamal Dulat , Yi Yuan , Kai Ma

In this study, we investigate the many-body non-Hermitian skin effect at finite temperatures in the thermodynamic limit. Our findings indicate an interesting correspondence between the non-Hermitian skin effect and a linear electric…

其他凝聚态物理 · 物理学 2023-11-07 Kui Cao , Qian Du , Su-Peng Kou

We have developed a series expansion method for calculating the zero-temperature properties of lattice electron models for variable electron density, i.e. for finite doping away from the half-filled case. This is done by introducing…

强关联电子 · 物理学 2007-05-23 Zheng Weihong , C. J. Hamer , J. Oitmaa , R. R. P. Singh

Quantum entanglement plays a crucial role not only in understanding Hermitian many-body systems but also in offering valuable insights into non-Hermitian quantum systems. In this paper, we analytically investigate the entanglement…

量子物理 · 物理学 2025-04-09 Pei-Yun Yang , Yu-Chin Tzeng

We compute the total cross section as well as angular and energy distributions for process $e^+e^-\to\gamma\gamma\gamma$ with both unpolarized and polarized beams in the framework of noncommutative quantum electrodynamics (NCQED). The…

高能物理 - 唯象学 · 物理学 2008-11-26 Alberto Devoto , Stefano Di Chiara , Wayne W. Repko

Models of the solar transition region made from lines other than those of helium cannot account for the strength of the helium lines. However, the collisional excitation rates of the helium resonance lines are unusually sensitive to the…

天体物理学 · 物理学 2009-11-07 G. R. Smith , C. Jordan

Irradiation of the strong light on the material leads to numerous non-linear effects that are essential to understand the physics of excited states of the system and for optoelectronics. Here, we study the non-linear thermoelectric effect…

介观与纳米尺度物理 · 物理学 2021-03-05 Pankaj Bhalla

These lecture notes illustrate the application of Dyson-Schwinger equations in QCD. The extensive body of work at zero temperature and chemical potential is represented by a selection of contemporary studies that focus on solving the…

核理论 · 物理学 2010-03-04 Craig D. Roberts

This is a review of selected recent developments in finite-temperature lattice QCD. The focus is on the properties of the chiral crossover region, deconfinement and fluctuations of conserved charges, the equation of state, properties of…

高能物理 - 格点 · 物理学 2015-05-22 Alexei Bazavov

This paper explores the effects of strong magnetic fields on the Compton scattering of relativistic electrons. Recent studies of upscattering and energy loss by relativistic electrons that have used the non-relativistic, magnetic Thomson…

A non-Hermitian topological insulator is fundamentally different from conventional topological insulators. The non-Hermitian skin effect arises in a nonreciprocal tight binding lattice with open edges. In this case, not only topological…

介观与纳米尺度物理 · 物理学 2020-01-01 C. Yuce

In this study, the physics of sheath formation in a collisional two-electron temperature plasma in the presence of an oblique external magnetic field has been investigated. At first, a comparative study among the fluid electron model,…

等离子体物理 · 物理学 2022-08-29 G. Sharma , R. Paul , K. Deka , R. Moulick , S. Adhikari , S. S. Kausik , B. K. Saikia

We study the effects of non-commutative QED (NCQED) in fermion pair production, gamma + gamma to f + \bar{f} and Compton scattering, e + gamma to e + gamma. Non-commutative geometries give rise to 3- and 4-point photon vertices and to…

高能物理 - 唯象学 · 物理学 2007-05-23 Stephen Godfrey , M. A. Doncheski