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Using the normally ordered Gaussian form of displaced-squeezed thermal field characteristic of average photon number n, we introduce the photon-added squeezed thermo state (PASTS) and investigate its statistical properties, such as Mandel's…

量子物理 · 物理学 2015-05-13 Xue-xiang Xu , Li-yun Hu , Hong-yi Fan

We study the propagation of high-frequency electromagnetic waves in randomly heterogeneous bianisotropic media with dissipative properties. For that purpose we consider randomly fluctuating optical responses of such media with correlation…

数学物理 · 物理学 2024-03-12 Jean-Luc Akian , Éric Savin

Diffusing-wave spectroscopy is a powerful technique which consists in measuring the temporal correlation function of the intensity of light multiply scattered by a medium. In this paper, we apply this technique to cold atoms under purely…

Thermal boundary resistance is a critical quantity that controls heat transfer at the nanoscale, which is primarily related to interfacial phonon scattering. Here, we combine lattice dynamics calculations and inputs from first principles ab…

介观与纳米尺度物理 · 物理学 2017-10-30 Ali Alkurdi , Stéphane Pailhès , Samy Merabia

In the paper by Franosch et al., Nature 478, 85 (2011), the positional fluctuations of Brownian microspheres in fluids were studied by confining the particles in an optical trap. Experimental access to short timescales has revealed a…

统计力学 · 物理学 2013-04-16 Jana Tothova , Lukas Glod , Vladimir Lisy

The recent development of a scanning thermal microscope (SThM) has led to measurements of radiative heat transfer between a heated sensor and a cooled sample down to the nanometer range. This allows for comparision of the known theoretical…

介观与纳米尺度物理 · 物理学 2011-03-18 Svend-Age Biehs

An approximate analytical solution to the fluctuation potential problem in the modified Poisson-Boltzmann theory of electrolyte solutions in the restricted primitive model is presented. The solution is valid for all inter-ionic distances,…

统计力学 · 物理学 2017-12-15 E. O. Ulloa-Dávila , L. B. Bhuiyan

We analyze optical spectra of high temperature superconductors using a minimal model of electrons coupled to bosons. We consider the marginal Fermi liquid theory and the spin fluctuation theory, as well as a histogram representation of the…

超导电性 · 物理学 2009-04-17 E. van Heumen , A. B. Kuzmenko , D. van der Marel

We investigate the role of large amplitude sub-critical thermal fluctuations in the dynamics of first order phase transitions. In particular, we obtain a kinetic equation for the number density of sub-critical fluctuations of the…

高能物理 - 唯象学 · 物理学 2009-10-22 Graciela Gelmini , Marcelo Gleiser

In this article we study the trapped motion of a molecule undergoing diffusivity fluctuations inside a harmonic potential. For the same diffusing-diffusivity process, we investigate two possible interpretations. Depending on whether…

统计力学 · 物理学 2023-01-04 Yann Lanoiselée , Aleksander Stanislavsky , Davide Calebiro , Aleksander Weron

The presence of attractive interaction between fermions can lead to pairing and superfluidity in an optical lattice. The temperature needed to observe superfluidity is about a tenth of the tunneling energy in the optical lattice, and…

量子气体 · 物理学 2011-04-27 Viveka Nand Singh , Sanjoy Datta , Pinaki Majumdar

A comprehensive picture of polaron and bipolaron physics is essential to understand the optical absorption spectrum in many materials with electron-phonon interactions. In particular, the finite-temperature properties are of interest since…

强关联电子 · 物理学 2022-10-27 David Jansen , Janez Bonča , Fabian Heidrich-Meisner

We study the photon statistics of weak coherent pulses propagating through a cold Rydberg atomic ensemble in the regime of Rydberg electromagnetically induced transparency. We show experimentally that the value of the second-order…

The superfluid to Mott insulator transition in cavity polariton arrays is analyzed using the variational cluster approach, taking into account quantum fluctuations exactly on finite length scales. Phase diagrams in one and two dimensions…

其他凝聚态物理 · 物理学 2009-09-17 Markus Aichhorn , Martin Hohenadler , Charles Tahan , Peter B. Littlewood

The work is devoted to the theoretical and experimental study of quantum states of light conditionally prepared by subtraction of a random number of photons from the initial multimode thermal state. A fixed number of photons is subtracted…

量子物理 · 物理学 2019-06-18 Yu. I. Bogdanov , N. A. Bogdanova , K. G. Katamadze , G. V. Avosopiants , S. P. Kulik

We study the bosonic part of the BMN matrix model for wide ranges of temperatures, values of the deformation parameter, and numbers of colors $16 \leq N \leq 48$. Using lattice computations, we analyze phase transitions in the model,…

高能物理 - 格点 · 物理学 2022-05-31 Navdeep Singh Dhindsa , Raghav G. Jha , Anosh Joseph , Abhishek Samlodia , David Schaich

We study the behaviour of ultracold bosonic gas in the critical region above the Bose-Einstein condensation in the presence of an artificial magnetic field, $B_\mathrm{art}$. We show that the condensate fluctuations above the critical…

量子气体 · 物理学 2016-06-01 Arvid J. Kingl , D. M. Gangardt , Igor V. Lerner

Very recent experiments have discovered that localized light in strongly absorbing media displays intriguing diffusive phenomena. Here we develop a first-principles theory of light propagation in open media with arbitrary absorption…

光学 · 物理学 2013-10-30 Li-Yi Zhao , Chu-Shun Tian , Zhao-Qing Zhang , Xiang-Dong Zhang

Nonclassical properties of light propagating through the turbulent atmosphere are studied. We demonstrate by numerical simulation that the probability distribution of the transmission coefficient, which characterizes the effects of the…

量子物理 · 物理学 2009-08-12 A. A. Semenov , W. Vogel

In this paper we analyze the quantum uncertainties and the photon statistics in the interaction between the two modes of radiation by treating them as coupled harmonic oscillator with the motivation of controlling quantum properties of one…

atom-ph · 物理学 2010-12-14 Abir Bandyopadhyay , Jagdish Rai