Results 71 to 80 of about 31,438 (162)

Coupling Enhancement and Symmetrization in Dissipative Optomechanical Systems

Annalen der Physik, Volume 538, Issue 3, March 2026.
A practical circuit‐QED scheme with dual coherent laser driving and enhanced cross‐Kerr nonlinearity is presented to achieve ultrastrong optomechanical coupling in the few‐photon regime. A symmetric optomechanical dynamical framework is further established to enable a systematic classification of different coupling regimes.
Cheng Shang, H. Z. Shen
wiley   +1 more source

Particle number fluctuations in a non-ideal pion gas

EPJ Web of Conferences, 2018
We consider a non-ideal hot pion gas with the dynamically fixed number of particles in the model with the λφ4 interaction. The effective Lagrangian for the description of such a system is obtained by dropping the terms responsible for the change of the ...
Kolomeitsev Evgeni E., Borisov Maxim E., Voskresensky Dmitry N.   +2 more
doaj   +1 more source

Observation of Bose-Einstein Condensation of Molecules

, 2003
We have observed Bose-Einstein condensation of molecules. When a spin mixture of fermionic Li-6 atoms was evaporatively cooled in an optical dipole trap near a Feshbach resonance, the atomic gas was converted into Li_2 molecules.
Gupta, S., Hadzibabic, Z., Ketterle, W., Raupach, S. M. F., Schunck, C. H., Stan, C. A., Zwierlein, M. W.   +6 more
core   +1 more source

Suprathermal Soliton Solutions to Nonlinear Schrödinger Equation

Contributions to Plasma Physics, Volume 66, Issue 3, March 2026.
ABSTRACT Maxwell distributions are very difficult to find in the low‐pressure environment far away the Earth atmosphere, permeated by high temperatures, various types of radiation, highly energetic particles, space debris, and subjected to microgravity, presenting crucial challenges for spacecraft design and operations, and affecting astronaut's health.
F. E. M. Silveira, M. H. Benetti, I. L. Caldas   +2 more
wiley   +1 more source

Generalized Bose-Einstein condensation into multiple states in driven-dissipative systems

, 2013
Bose-Einstein condensation, the macroscopic occupation of a single quantum state, appears in equilibrium quantum statistical mechanics and persists also in the hydrodynamic regime close to equilibrium. Here we show that even when a degenerate Bose gas is
Eckardt, André, Ketzmerick, Roland, Vorberg, Daniel, Wustmann, Waltraut   +3 more
core   +1 more source

Unveiling Hidden Features of Strongly Correlated Quantum Systems Through a Complex‐Network Analysis

Advanced Quantum Technologies, Volume 9, Issue 3, March 2026.
By applying complex network theory, we report a fundamental and previously unobserved phenomenon in the finite‐size Kitaev model: a singular point at which uniform, nonzero entanglement emerges among all fermion pairs, forming a complete entanglement network.
Guillem Llodrà, Roberta Zambrini, Gian Luca Giorgi   +2 more
wiley   +1 more source

Born-Kothari Condensation for Fermions

Entropy, 2017
In the spirit of Bose–Einstein condensation, we present a detailed account of the statistical description of the condensation phenomena for a Fermi–Dirac gas following the works of Born and Kothari.
Arnab Ghosh
doaj   +1 more source

A Thermodynamic Framework for Turing‐Type Instabilities in Porous Media: Part I Theory

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 3, March 2026.
Abstract Pattern formation in geological materials is commonly described using analogies to Turing‐type reaction–diffusion systems, yet a unifying thermodynamic explanation remains elusive. Here we develop a multiscale, thermodynamically consistent framework for pattern‐forming instabilities in porous media undergoing coupled thermo–hydro–mechanical ...
Klaus Regenauer‐Lieb, Manman Hu, Qingpei Sun, Chong Liu, Zhennan Zhu, Victor Calo   +5 more
wiley   +1 more source

Temporal evolution of cosmological density perturbations of the Bose–Einstein condensate dark matter

European Physical Journal C: Particles and Fields
Dark matter is assumed to be composed of scalar boson particles that form Bose–Einstein condensate during the cosmic evolution of the Universe when the temperature of the dark matter is below the critical temperature $$T_{cr}$$ T cr .
Subhra Mondal, Amitava Choudhuri
doaj   +1 more source

Thermo-optical interactions in a dye-microcavity photon Bose–Einstein condensate

New Journal of Physics, 2017
Superfluidity and Bose–Einstein condensation are usually considered as two closely related phenomena. Indeed, in most macroscopic quantum systems, like liquid helium, ultracold atomic Bose gases, and exciton-polaritons, condensation and superfluidity ...
Hadiseh Alaeian, Mira Schedensack, Clara Bartels, Daniel Peterseim, Martin Weitz   +4 more
doaj   +1 more source