Results 41 to 50 of about 1,582 (138)
Crossover from a molecular Bose-Einstein condensate to a degenerate Fermi gas. [PDF]
Physical Review Letters, 2004 We demonstrate a reversible conversion of a 6Li2 molecular Bose-Einstein condensate to a degenerate Fermi gas of atoms by adiabatically crossing a Feshbach resonance.
M. Bartenstein +6 more
semanticscholar +1 more source
Coherent gamma photon generation in a Bose–Einstein condensate of 135mCs
Physics Letters B, 2018 We have identified a mechanism of collective nuclear de-excitation in a Bose–Einstein condensate of 135Cs atoms in their isomeric state, 135mCs, suitable for the generation of coherent gamma photons.
Luca Marmugi +2 more
doaj +1 more source
Bose-Einstein condensate of Dirac magnons: Pumping and collective modes
Physical Review Research, 2021 We explore the formation and collective modes of Bose-Einstein condensate of Dirac magnons (Dirac BEC). While we focus on two-dimensional Dirac magnons, an employed approach is general and could be used to describe Bose-Einstein condensates with linear ...
P. O. Sukhachov +2 more
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Impurity in a Bose-Einstein Condensate and the Efimov Effect. [PDF]
Physical Review Letters, 2015 We investigate the zero-temperature properties of an impurity particle interacting with a Bose-Einstein condensate (BEC), using a variational wave function that includes up to two Bogoliubov excitations of the BEC.
J. Levinsen, M. Parish, G. Bruun
semanticscholar +1 more source
Strongly dipolar Bose-Einstein condensate of dysprosium. [PDF]
Physical Review Letters, 2011 We report the Bose-Einstein condensation (BEC) of the most magnetic element, dysprosium. The Dy BEC is the first for an open f-shell lanthanide (rare-earth) element and is produced via forced evaporation in a crossed optical dipole trap loaded by an ...
Mingwu Lu, N. Burdick, S. Youn, B. Lev
semanticscholar +1 more source
Emergent Spin Supersolids in Frustrated Quantum Materials
Advanced Materials, EarlyView.This review highlights developments in the study of spin super‐solids in frustrated quantum materials. Advanced experimental characterizations and computational studies enable a comprehensive understanding of the driving mechanisms of spin super‐solidity in various layered transition‐metal compounds, bridging materials, experiments, and theory aspects.
Yixuan Huang +2 more
wiley +1 more source
Cavity Optomechanics with a Bose-Einstein Condensate [PDF]
Science, 2008 Cavity optomechanics studies the coupling between a mechanical oscillator and the electromagnetic field in a cavity. We report on a cavity optomechanical system in which a collective density excitation of a Bose-Einstein condensate serves as the ...
F. Brennecke +3 more
semanticscholar +1 more source
Temporal evolution of cosmological density perturbations of the Bose–Einstein condensate dark matter
European Physical Journal C: Particles and FieldsDark 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
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Bose-Einstein Condensate in Synchronous Coordinates
Physical Sciences Forum, 2023 Analytical spherically symmetric static solution to the set of Einstein and Klein-Gordon equations in a synchronous reference frame is considered. In a synchronous reference frame, a static solution exists in the ultrarelativistic limit p=−ε/3.
Boris E. Meierovich
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Photonic‐Enabled Energy‐Efficient Transparent Neuromorphic Computing Devices: A Review
Advanced Science, EarlyView.Transparent photonic neuromorphic computing devices merge optics and brain‐inspired computing to overcome von Neumann bottlenecks with ultrafast, low‐energy processing. By exploiting transparent oxides, 2D materials, phase‐change materials, and hybrid heterostructures, these platforms enable photonic synapses, memory, and logic for see‐through edge ...
Shuvaraj Ghosh +8 more
wiley +1 more source