Results 41 to 50 of about 1,869,289 (152)

d_{xy}-Density wave in fermion-fermion cold atom mixtures

, 2014
We study density wave instabilities in a doubly-degenerate Fermi-Fermi mixture with $SU(2)\times SU(2)$ symmetry on a square lattice. For sufficiently large on-site inter-species repulsion, when the two species of fermions are both at half-filling, two ...
Campbell, David K., Huang, Wen-Min, Lai, Chen-Yen, Tsai, Shan-Wen   +3 more
core   +2 more sources

Phase-space density in heavy-ion collisions revisited

, 2003
We derive the phase space density of bosons from a general boson interferometry formula. We find that the phase space density is connected with the two-particles and the single particle density distribution functions. If the boson density is large, the
Barrette, Bertsch, Bialas, C. Gale, Chao, Ference, Fialkowski, Fialkowski, Heinz, J. Barrette, Padula, Q. H. Zhang, Shuryak, Wang, Zajc, Zhang, Zhang, Zhang, Zhang, Zhang   +19 more
core   +2 more sources

Iron Snails: Nonequilibrium Dynamics and Spiral Abundance Patterns

The Astrophysical Journal
Galaxies are not in a dynamical steady state: they continually undergo perturbations, e.g., from infalling dwarf galaxies and dark matter substructure. After a dynamical perturbation, stars phase mix toward a new steady state; in so doing, they generally
Neige Frankel, David W. Hogg, Scott Tremaine, Adrian Price-Whelan, Jeff Shen   +4 more
doaj   +1 more source

Understanding Squeezed States of Light Through Wigner’s Phase-Space

Mathematics
This paper starts with the transition from classical physics to quantum mechanics which was greatly aided by the concept of phase space. The role of canonical transformations in quantum mechanics is addressed. The Wigner phase-space distribution function
Sibel Başkal, Marilyn E. Noz
doaj   +1 more source

Density resolved wave packet spreading in disordered Gross-Pitaevskii lattices

SciPost Physics Core, 2020
We perform novel energy and norm density resolved wave packet spreading studies in the disordered Gross-Pitaevskii (GP) lattice to confine energy density fluctuations.
Yagmur Kati, Xiaoquan Yu, Sergej Flach
doaj   +1 more source

Berry phase correction to electron density of states in solids

, 2005
Liouville's theorem on the conservation of phase space volume is violated by Berry phase in the semiclassical dynamics of Bloch electrons. This leads to a modification of the phase space density of states, whose significance is discussed in a number of ...
A. Bohm, D. M. Gitman, Di Xiao, Junren Shi, L. E. Reichl, M. V. Berry, N. W. Ashcroft, Qian Niu, T. Thonhauser   +8 more
core   +1 more source

The Quantum Canonical Ensemble [PDF]

, 1998
The phase space of quantum mechanics can be viewed as the complex projective space endowed with a Kaehlerian structure given by the Fubini-Study metric and an associated symplectic form.
Brody, D. C., Hughston, L. P.
core   +2 more sources

Kinetic analysis of intense sheet beam stability properties for uniform phase-space density

Physical Review Special Topics. Accelerators and Beams, 2003
This paper makes use of the Vlasov-Maxwell equations to investigate collective excitations in an intense sheet beam, infinite in the y and z directions, propagating in the z direction with directed kinetic energy (γ_{b}-1)m_{b}c^{2}. The beam is confined
Edward A. Startsev, Ronald C. Davidson
doaj   +1 more source

Correlation between the charged kaon ratio and the baryon phase-space density in heavy-ion collisions

, 2000
It is found that the baryon phase-space density obtained from the ratio of deuteron to proton yields is nearly constant over centrality in Au+Au collisions at the AGS.
Abbott, Ahle, Ahle, Appelshäuser, Barth, Bearden, Bialas, Bjorken, Braun-Munzinger, Brown, Brown, Cleymans, Cleymans, Csernai, Fuqiang Wang, Hansen N, Hong, Laue, Li, Murray N, Schaffner-Bielich, Sikler N, Sorge, Wang, Zimányi   +24 more
core   +1 more source

Physics-constrained superresolution diffusion for six-dimensional phase space diagnostics

Physical Review Research
Adaptive physics-constrained superresolution diffusion is developed for noninvasive virtual diagnostics of the six-dimensional (6D) phase space density of charged particle beams.
Alexander Scheinker
doaj   +1 more source