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相关论文: Negative absolute temperature attractor in a dense…

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We present an extensive study of the unique thermal and mechanical dynamics for narrow-line cooling on the 1S0 - 3P1 88Sr transition. For negative detuning, trap dynamics reveal a transition from the semiclassical regime to the…

原子物理 · 物理学 2009-11-10 Thomas H. Loftus , Tetsuya Ido , Andrew D. Ludlow , Martin M. Boyd , Jun Ye

The notion of negative absolute temperature emerges naturally from Boltzmann's definition of "surface" microcanonical entropy in isolated systems with a bounded energy density. Recently, the well-posedness of such construct has been…

统计力学 · 物理学 2017-05-31 Pierfrancesco Buonsante , Roberto Franzosi , Augusto Smerzi

Exact and approximate expressions for thermodynamic characteristics of heated matter, which consists of particles with finite mass-widths, are constructed. They are expressed in terms of Fermi/Bose distributions and spectral functions,…

核理论 · 物理学 2008-11-26 D. N. Voskresensky

Motivated by high interest in Lorentz invariant massive gravity models known as dRGT massive gravity, we present an exact phantom black hole solution in this theory of gravity and discuss the thermodynamic structure of the black hole in the…

广义相对论与量子宇宙学 · 物理学 2024-02-15 Kh. Jafarzade , B. Eslam Panah , M. E. Rodrigues

Harnessing a beam of slow free electrons in artificial photonic structures offers a powerful, tunable platform for generating nonclassical light without the need for heavy physical equipment. Here we present a theory of nonclassical lasing,…

光学 · 物理学 2025-11-14 Mai Zhang , Yu Wang , Chang-Ling Zou , Lei Ying , Qiongyi He , Guang-Can Guo , Chun-Hua Dong

Pattern formation of atoms in high-finesse optical resonators results from the mechanical forces of light associated with superradiant scattering into the cavity mode. It occurs when the laser intensity exceeds a threshold value, such that…

量子物理 · 物理学 2015-12-15 Stefan Schütz , Simon B. Jäger , Giovanna Morigi

Recently, condensed matter and atomic experiments have reached a length-scale and temperature regime where new quantum collective phenomena emerge. Finding such physics in systems of photons, however, is problematic, as photons typically do…

其他凝聚态物理 · 物理学 2007-08-01 Andrew D. Greentree , Charles Tahan , Jared H. Cole , L. C. L. Hollenberg

Collective spins in thermal gases are at the core of a multitude of science and technology applications. In most of them, the random thermal motion of the particles is considered detrimental as it is responsible for decoherence and noise.…

量子物理 · 物理学 2024-02-27 P. Bevington , J. Nicholson , J. D. Zipfel , W. Chalupczak , C. Mishra , V. Guarrera

We investigate temperature reservoir effects in a lossy Kerr nonlinear resonator considering selective excitation of ooscillatory mode driven by a sequence of Gaussian pulses. In this way, we analyze time-dependent populations of…

量子物理 · 物理学 2015-03-31 G. H. Hovsepyan , G. Yu. Kryuchkyan

The straightforward application of energy and linear momentum conservation to the absorption/emission of photons by atoms allows to establish the essential features of laser cooling of two levels atoms at low laser intensities. The lowest…

原子物理 · 物理学 2015-09-14 Giuseppe Giuliani

The quest for ever higher information capacities has brought about a renaissance in multimode optical waveguide systems. This resurgence of interest has recently initiated a flurry of activities in nonlinear multimode fiber optics. The…

光学 · 物理学 2019-12-19 Fan O. Wu , Absar U. Hassan , Demetrios N. Christodoulides

In this paper, we study thermostatistical properties of a photon gas in the framework of two deformed special relativity models defined by the cosmological coordinatizations of the de Sitter (dS) and anti-de Sitter (AdS) momentum spaces.…

广义相对论与量子宇宙学 · 物理学 2016-07-29 M. A. Gorji , V. Hosseinzadeh , K. Nozari , B. Vakili

The thermodynamics for Kerr-AdS black hole in four dimensions is revisited using the recently proposed restricted phase space formalism, which includes the central charge $C$ of the dual CFT and the chemical potential $\mu$, but excludes…

高能物理 - 理论 · 物理学 2022-02-08 Zeyuan Gao , Xiangqing Kong , Liu Zhao

We investigate the thermodynamic, optical, and dynamical properties of Reissner-Nordstrom-de Sitter black holes in a noncommutative spacetime with a minimal length scale Theta. Within a two-horizon framework, we formulate an effective first…

高能物理 - 理论 · 物理学 2026-03-24 Phongsakorn Sereewat , David Senjaya , Piyabut Burikham

The injection of photoelectrons in a gaseous or liquid sample is a widespread technique to produce a cold plasma in a weakly--ionized system in order to study the transport properties of electrons in a dense gas or liquid. We report here…

等离子体物理 · 物理学 2011-06-01 A. F. Borghesani , P. Lamp

From sand piles to electrons in metals, one of the greatest challenges in modern physics is to understand the behavior of an ensemble of strongly interacting particles. A class of quantum many-body systems such as neutron matter and cold…

量子气体 · 物理学 2010-06-01 Sylvain Nascimbène , Nir Navon , Kaijun Jiang , Frédéric Chevy , Christophe Salomon

Limiting structure of thermodynamic functions of gaseous plasmas is under consideration in the limit of zero temperature and density. Remarkable tendency, which was claimed previously (Iosilevskiy and Gryaznov, 1985) is carried to extreme.…

等离子体物理 · 物理学 2015-05-19 Igor Iosilevskiy

Although the study of ultracold quantum gases trapped by light is a prominent direction of modern research, the quantum properties of light were widely neglected in this field. Quantum optics with quantum gases closes this gap and addresses…

量子气体 · 物理学 2012-05-09 Igor B. Mekhov , Helmut Ritsch

Ultracold neutral plasmas are formed by photoionizing laser-cooled atoms near the ionization threshold. Through the application of atomic physics techniques and diagnostics, these experiments stretch the boundaries of traditional neutral…

To manipulate cold atoms in spatially constrained quantum engineering platforms, we developed a lensless optical system with a $\sim$1 $\mu$m resolution and a transverse size of only 225 $\mu$m. We use a multimode optical fiber with a high…

原子物理 · 物理学 2020-03-24 Nicolas Vitrant , Kilian Müller , Sébastien Garcia , Alexei Ourjoumtsev