Results 21 to 30 of about 1,254 (135)

Boosting engine performance with Bose–Einstein condensation

open access: yesNew Journal of Physics, 2022
At low-temperatures a gas of bosons will undergo a phase transition into a quantum state of matter known as a Bose–Einstein condensate (BEC), in which a large fraction of the particles will occupy the ground state simultaneously.
Nathan M Myers   +5 more
doaj   +1 more source

Pair condensation in a dilute Bose gas with Rashba spin–orbit coupling

open access: yesNew Journal of Physics, 2014
We show that in a two-component Bose gas with Rashba spin–orbit coupling (SOC), two atoms can form bound states (Rashbons) with any intra-species scattering length.
Rong Li, Lan Yin
doaj   +1 more source

High temperature Bose-Einstein condensation

open access: yesEPJ Web of Conferences, 2016
The indications of a possible pion condensation at the LHC are summarized. The condensation is predicted by the non-equilibrium hadronization model for 2.76 TeV Pb+Pb collisions at the LHC.
Begun Viktor
doaj   +1 more source

Einstein–Bose condensation of Onsager vortices

open access: yesNew Journal of Physics, 2018
We have studied statistical mechanics of a gas of vortices in two dimensions. We introduce a new observable—a condensate fraction of Onsager vortices—to quantify the emergence of the vortex condensate.
Rahil N Valani   +2 more
doaj   +1 more source

Unconventional Biexciton Dynamics in Superradiant Perovskite Quantum Dots Driven by Many‐Body Correlations

open access: yesAdvanced Materials, EarlyView.
Single‐particle spectroscopy and variational quantum Monte Carlo simulations reveal that strong many‐body correlations fundamentally alter biexciton radiative recombination in weakly confined CsPbBr3 quantum dots. Intra‐ and inter‐exciton correlations reverse the conventional lifetime hierarchy, yielding biexcitons with longer radiative lifetimes than ...
Chenglian Zhu   +11 more
wiley   +1 more source

Deterministic Transferable Planar Dielectric Mirrors for Investigating Strong Light–Matter Coupling

open access: yesAdvanced Optical Materials, EarlyView.
Transferable dielectric distributed Bragg reflectors enable the deterministic assembly of high‐quality planar microcavities while maintaining the intrinsic properties of quantum materials during fabrication. The resulting structures exhibit robust exciton‐photon coupling in monolayer WS2${\rm WS}_{2}$ from cryogenic to room temperature, establishing a ...
Atanu Patra   +4 more
wiley   +1 more source

Photonic‐Enabled Energy‐Efficient Transparent Neuromorphic Computing Devices: A Review

open access: yesAdvanced 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

Intrinsic Phonons as a Dynamic Control Knob for Catalytic Reactivity in 2D Materials

open access: yesAdvanced Science, EarlyView.
Intrinsic phonon excitations are demonstrated to serve as a dynamic control knob for catalytic reactivity in 2D materials. Mode‐selective lattice vibrations reconstruct the electronic structure, lower oxygen evolution reaction barriers, establishing a phonon‐engineering paradigm for dynamically regulating electrocatalysis beyond conventional static ...
Kai Ren   +5 more
wiley   +1 more source

High‐Pressure Modulation of Breathing Kagome Lattice: Cascade of Lifshitz Transitions and Evolution of the Electronic Structure

open access: yesAdvanced Science, EarlyView.
External pressure directly tunes the breathing distortion of the kagome lattice in Fe3Sn2, suppressing it near 15 GPa and reversing it at higher pressures. This structural modulation drives a cascade of Lifshitz transitions, reconstructs the Fermi surface, strengthens electronic correlations and carrier localization, and modifies ultrafast electron ...
Marcos Vinicius Gonçalves‐Faria   +14 more
wiley   +1 more source

"THE AVERAGED LAGRANGIAN OF SOLITONS OF BOSE-EINSTEIN CONDENSATION "

open access: yesEurasian Physical Technical Journal, 2018
The effect of the fluctuation interaction of atoms forming a condensate on solitons of the Bose-Einstein condensation is considered. A short derivation of the Gross-Pitaevsky equation is given.
M.R. Zhumaev   +2 more
doaj  

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