Results 51 to 60 of about 38,907 (173)

Quantum phase transition in an atomic Bose gas with a Feshbach resonance

, 2003
We show that in an atomic Bose gas near a Feshbach resonance a quantum phase transition occurs between a phase with only a molecular Bose-Einstein condensate and a phase with both an atomic and a molecular Bose-Einstein condensate.
H. T. C. Stoof, M. W. J. Romans, P. Nozieres, R. A. Duine, Subir Sachdev   +4 more
core   +1 more source

Unveiling New Perspectives on the Hirota–Maccari System With Multiplicative White Noise

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT In this study, we delve into the stochastic Hirota–Maccari system, which is subjected to multiplicative noise according to the Itô sense. The stochastic Hirota–Maccari system is significant for its ability to accurately model how stochastic affects nonlinear wave propagation, providing valuable insights into complex systems like fluid dynamics
Mohamed E. M. Alngar, Khaled A. Gepreel, Reham M. A. Shohib, Yakup Yildirim   +3 more
wiley   +1 more source

Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics

Advanced Functional Materials, Volume 36, Issue 27, 2 April 2026.
Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha, Yingshan Ma, Yong Nam An, Sung‐Un An, Hyeon Hak Jung, Suvi‐Tuuli Varjamo, Jiwon Yoo, Junho Min, Hanvit Kim, Faisal Ahmed, Sang Hoon Chae, Young Min Song, Weiwei Cai, Tawfique Hasan, Zhipei Sun, Dong‐Ho Kang, Hyeon‐Jin Shin, Yunyun Dai, Hoon Hahn Yoon   +18 more
wiley   +1 more source

Steady-state entanglement of a Bose-Einstein condensate and a nanomechanical resonator

, 2011
We analyze the steady-state entanglement between Bose-Einstein condensate trapped inside an optical cavity with a moving end mirror (nanomechanical resonator) driven by a single mode laser.
Asjad, Muhammad, Saif, Farhan
core   +1 more source

Indirect Band Edge and Chain‐Locked Linear Dichroism in the Quasi‐1D Van der Waals Antiferromagnet AgCrP2S6

Advanced Functional Materials, Volume 36, Issue 35, 30 April 2026.
AgCrP2S6 reveals a momentum‐indirect band edge (≈1.35 eV) and chain‐locked linear dichroism: the first direct transitions emerge at 1.6–1.8 eV for E||a. Resonant Raman and photoemission corroborate this assignment. In ACPS/graphene heterostructures, photocurrent turns on above ≈1.5 eV and follows the same polarization selection rules (anisotropy ≈0.53),
Oleksandr Volochanskyi, Sabrina Juergensen, Václav Valeš, Kumari Surbhi, Martin Mergl, Kseniia Mosina, Zdeněk Sofer, Jan Honolka, Patryk Kusch, Martin Kalbáč   +9 more
wiley   +1 more source

Non-equilibrium evolution of Bose-Einstein condensate deformation in temporally controlled weak disorder

SciPost Physics, 2021
We consider a time-dependent extension of a perturbative mean-field approach to the homogeneous dirty boson problem by considering how switching on and off a weak disorder potential affects the stationary state of an initially equilibrated Bose ...
Milan Radonjić, Axel Pelster
doaj   +1 more source

Bose-Einstein condensation thermodynamics of a trapped gas with attractive interaction

, 2000
We study the Bose-Einstein condensation of an interacting gas with attractive interaction confined in a harmonic trap using a semiclassical two-fluid mean-field model.
Adhikari, Anderson, Bagnato, Bayindir, Bayindir, Bradley, Bradley, Dalfovo, Dalfovo, Davis, Dodd, Edwards, Ensher, Fried, Gammal, Giorgini, Giorgini, Gross, Hau, Houbiers, Minguzzi, Popov, Ruprecht, Sackett, Sadhan K Adhikari, Shi, Stoof   +26 more
core   +1 more source

Schrodinger equation for the one particle density matrix of thermal systems: An alternative formulation of Bose-Einstein condensation [PDF]

, 2006
We formulate a linear Schrodinger equation with the temperature-dependent potential for the one-particle density matrix and obtain the condensation temperature of the Bose-Einstein condensate from a bound-state condition for the Schrodinger equation both
Arfken G, Einstein A, Einstein A, Gross E P, Huang K, Pathria R K, Peter Pfeifer, Pethick C J, Pitaevskii L P, Pitaevskii L P, Subodha Mishra   +10 more
core   +2 more sources

Self‐Hybridized Exciton‐Polariton Photodetectors From Layered Metal‐Organic Chalcogenolates

Advanced Functional Materials, Volume 36, Issue 34, 27 April 2026.
Self‐hybridized exciton‐polariton photodetectors are demonstrated using high refractive index mithrene, eliminating the need for top mirrors. This simplified architecture enables tunable sub‐bandgap photodetection via lower exciton‐polariton states and enhanced carrier transport through ultrafast polariton group velocities.
Bongjun Choi, Adam D. Alfieri, Wangleong Chen, Deep Jariwala   +3 more
wiley   +1 more source

Periodic Quantum Tunneling and Parametric Resonance with Cigar-Shaped Bose-Einstein Condensates

, 2002
We study the tunneling properties of a cigar-shaped Bose-Einstein condensate by using an effective 1D nonpolynomial nonlinear Schr\"odinger equation (NPSE).
A Parola, Arnold V I, Fribel S, Gross E P, L Reatto, L Salasnich, Landau L D, Pitaevskii L P, Pitaevskii L P, Salasnich L, Salasnich L, Zapata I   +11 more
core   +1 more source