Zobrazeno 1 - 10
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pro vyhledávání: '"Yu, Y. B."'
Publikováno v:
Ann. Phys. (Berlin) 536, 2300365 (2024)
We investigate particle emission from a Bose-Einstein condensate with periodically modulated interactions in a one-dimensional lattice. Within perturbative analysis, which leads to instabilities for discrete modes, we obtain the main regimes where th
Externí odkaz:
http://arxiv.org/abs/2211.03386
Publikováno v:
Phys. Rev. A 106, 033302 (2022)
Motivated by recent experiments, we investigate particle emission from a Bose-Einstein condensate in a one-dimensional lattice, where the interaction strength is periodically modulated. The modulated interactions parametrically excite a collective mo
Externí odkaz:
http://arxiv.org/abs/2205.01900
Publikováno v:
Phys. Rev. A 104, 033308 (2021)
Motivated by recent experiments, we calculate particle emission from a Bose-Einstein condensate trapped in a single deep well of a one-dimensional lattice when the interaction strength is modulated. In addition to pair emission, which has been widely
Externí odkaz:
http://arxiv.org/abs/2106.09604
Publikováno v:
Phys. Rev. B 100, 125437 (2019)
In the presence of a nonlocal potential in molecular device systems, generally the charge conservation cannot be satisfied, and in literatures the modifications of the conventional definition of current were given to solve this problem. We demonstrat
Externí odkaz:
http://arxiv.org/abs/1902.08864
Publikováno v:
New Astronomy 75 (2020) 101306
Recently, GRB 170817A was confirmed to be associated with GW 170817, which was produced by a neutron star - neutron star merger. It indicates that at least some short gamma-ray bursts come from binary neutron star mergers. Theoretically, it is widely
Externí odkaz:
http://arxiv.org/abs/1803.10040
Autor:
Huang, Y. F., Yu, Y. B.
The true ground state of hadronic matter may be strange quark matter (SQM). Consequently, the observed pulsars may actually be strange quark stars, but not neutron stars. However, proving or disproving the SQM hypothesis still remains to be a difficu
Externí odkaz:
http://arxiv.org/abs/1702.07978
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Akademický článek
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In recent years, more and more gamma-ray bursts with late rebrightenings in multi-band afterglows unveil the late-time activities of the central engines. GRB 100814A is a special one among the well-sampled events, with complex temporal and spectral e
Externí odkaz:
http://arxiv.org/abs/1504.01824
Autor:
Yu, Y. B., Huang, Y. F.
Long term observations by Brook et al. reveal that the derivative of rotational frequency of PSR J0738-4042 changed abruptly in 2005. Originally, the spin-down rate was relatively stable, with the rotational frequency derivative of $-1.14 \times 10^{
Externí odkaz:
http://arxiv.org/abs/1503.01571