Results 71 to 80 of about 120,656 (239)

Relaxation dynamics of the Ising $p$-spin disordered model with finite number of variables

open access: yes, 2019
We study the dynamic and metastable properties of the fully connected Ising $p$-spin model with finite number of variables. We define trapping energies, trapping times and self correlation functions and we analyse their statistical properties in ...
Cugliandolo, L. F., Stariolo, D. A.
core   +2 more sources

Fragility of the fractional quantum spin Hall effect in quantum gases

open access: yesNew Journal of Physics, 2014
We consider the effect of contact interaction in a prototypical quantum spin Hall system of pseudo-spin-1/2 particles. A strong effective magnetic field with opposite directions for the two spin states restricts two-dimensional particle motion to the ...
O Fialko, J Brand, U Zülicke
doaj   +1 more source

Fourth- and fifth-order virial expansion of harmonically trapped fermions at unitarity

open access: yesPhysical Review Research, 2021
By generalizing our automated algebra approach from homogeneous space to harmonically trapped systems, we have calculated the fourth- and fifth-order virial coefficients of universal spin-1/2 fermions in the unitary limit, confined in an isotropic ...
Y. Hou   +3 more
doaj   +1 more source

Magnetic trapping of buffer-gas cooled chromium atoms and prospects for the extension to paramagnetic molecules

open access: yes, 2006
We report the successful buffer-gas cooling and magnetic trapping of chromium atoms with densities exceeding $10^{12}$ atoms per cm$^{3}$ at a temperature of 350 mK for the trapped sample.
Bakker, Joost M.   +5 more
core   +1 more source

Scalable Ion Trap Architecture for Universal Quantum Computation by Collisions

open access: yes, 2018
We propose a scalable ion trap architecture for universal quantum computation, which is composed of an array of ion traps with one ion confined in each trap. The neighboring traps are designed capable of merging into one single trap.
Guo, Lingzhen, Liang, Pengfei
core  

Spin diffusion in trapped clouds of strongly interacting cold atoms

open access: yes, 2011
We show that puzzling recent experimental results on spin diffusion in a strongly interacting atomic gas may be understood in terms of the predicted spin diffusion coefficient for a generic strongly interacting system.
C. J. Pethick   +2 more
core   +1 more source

Interferometer for force measurement via a shortcut to adiabatic arm guiding

open access: yesPhysical Review Research, 2020
We propose a compact atom interferometer to measure homogeneous constant forces guiding the arms via shortcuts to adiabatic paths. For a given sensitivity, which only depends on the space-time area of the guiding paths, the cycle time can be made fast ...
A. Rodriguez-Prieto   +3 more
doaj   +1 more source

State-dependent potentials in a nanofiber-based two-color trap for cold atoms

open access: yes, 2013
We analyze the ac Stark shift of a cesium atom interacting with far-off-resonance guided light fields in the nanofiber-based two-color optical dipole trap realized by Vetsch \textit{et al.} [Phys. Rev. Lett. \textbf{104}, 203603, (2010)].
Kien, Fam Le   +2 more
core   +2 more sources

Coherent structural trapping through wave packet dispersion during photoinduced spin state switching

open access: yesNature Communications, 2017
Ultrafast nonadiabatic chemical dynamics during molecular photo-transformations remain challenging to describe since electronic/nuclear configurations are coupled.
Henrik T. Lemke   +14 more
doaj   +1 more source

Correlated spontaneous symmetry breaking induced by zero-point fluctuations in a quantum mixture

open access: yes, 2014
We propose a form of spontaneous symmetry breaking driven by zero-point quantum fluctuations. To be specific, we consider the low-energy dynamics of a mixture of two species of spin-$1$ Bose gases.
Ge, Li, Shi, Yu, Zhou, Fei
core   +1 more source

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