Zobrazeno 1 - 10
of 54
pro vyhledávání: '"I. Sheng Yang"'
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 484:5723-5733
In regions with strongly varying electron density, radio emission can be magnified significantly by plasma lensing. In the presence of magnetic fields, magnification in time and frequency will be different for two circular polarizations. We show how
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::466cec0833facec4b9696186ab52a083
https://doi.org/10.1093/mnras/stz374
https://doi.org/10.1093/mnras/stz374
Autor:
I-Sheng Yang
Publikováno v:
Physical Review
We derive the time scale for two initially pure subsystems to become entangled with each other through an arbitrary Hamiltonian that couples them. The entanglement timescale is inversely proportional to the “correlated uncertainty” between the tw
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8c97a53fb44103b5af7436edc26aaeee
https://doi.org/10.1103/physrevd.97.066008
https://doi.org/10.1103/physrevd.97.066008
Autor:
Keith Vanderlinde, Ue-Li Pen, Robert Main, D. Z. Li, Fang Xi Lin, Marten H. van Kerkwijk, I-Sheng Yang, Victor C.H. Chan, Nikhil Mahajan
Radio pulsars scintillate because their emission travels through the ionized interstellar medium via multiple paths, which interfere with each other. It has long been realized that the scattering screens responsible for the scintillation could be use
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c707b8ad45fd3c32ae3f8f8105fde064
Autor:
Robert, Main, I-Sheng, Yang, Victor, Chan, Dongzi, Li, Fang Xi, Lin, Nikhil, Mahajan, Ue-Li, Pen, Keith, Vanderlinde, Marten H, van Kerkwijk
Publikováno v:
Nature. 557(7706)
Radio pulsars scintillate because their emission travels through the ionized interstellar medium along multiple paths, which interfere with each other. It has long been realized that, independent of their nature, the regions responsible for the scint
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::62015e6c378c97967ed388acea68a428
https://pubmed.ncbi.nlm.nih.gov/29789741
https://pubmed.ncbi.nlm.nih.gov/29789741
Autor:
I-Sheng Yang
We show that a quantum subsystem can become significantly entangled with a classical background through a process with little or none semi-classical back-reactions. We study two quantum harmonic oscillators coupled to each other in a time-independent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::092fc478f2579c9bbde8411f62a62218
http://arxiv.org/abs/1703.03466
http://arxiv.org/abs/1703.03466
From the basic concepts of general relativity, we investigate the rotation of the polarization angle by a moving gravitational lens. Particularly, we clarify the existing confusion in the literature by showing and explaining why such rotation must ex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1b200aea1201af66f86a9a1bf2fd1e0b
http://arxiv.org/abs/1701.08243
http://arxiv.org/abs/1701.08243
Publikováno v:
Physical Review D-Particles, Fields, Gravitation and Cosmology, 94(12):124008. American Institute of Physics
Previous work on the AdS instability problem within the two-time framework (TTF) has found an "oscillating singularity" whose presence depends on the gauge choice. We give a physical interpretation of this singularity as a diverging redshift between
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7b399da1e6ccf66cf665ce9d933317a1
https://dare.uva.nl/personal/pure/en/publications/gauge-dependence-of-the-ads-instability-problem(e3b58298-6c83-406e-9dbd-652324d24cde).html
https://dare.uva.nl/personal/pure/en/publications/gauge-dependence-of-the-ads-instability-problem(e3b58298-6c83-406e-9dbd-652324d24cde).html
We show that when a supernova explodes, a nearby pulsar signal goes through a very specific change. The observed period first changes smoothly, then is followed by a sudden change in the time derivative. A stable millisecond pulsar can allow us to me
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::925dba63f4a2663d20ebfe5931faba57
http://arxiv.org/abs/1601.03917
http://arxiv.org/abs/1601.03917
Publikováno v:
Journal of High Energy Physics
The Journal of High Energy Physics, 2015(8):77. Springer Verlag
The Journal of High Energy Physics, 2015(8):77. Springer Verlag
We investigate whether arbitrarily small perturbations in global AdS space are generically unstable and collapse into black holes on the time scale set by gravitational interactions. We argue that current evidence, combined with our analysis, strongl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b191b8ed1ad0636dce3386fc27b9497b
http://www.openaccessrepository.it/record/15081
http://www.openaccessrepository.it/record/15081
Autor:
I-Sheng Yang
Publikováno v:
Physical Review D. Particles, Fields, Gravitation, and Cosmology, 91(6):065011. American Institute of Physics
We study a massless scalar field in AdS(d+1) with a nonlinear coupling phi(N) and not limited to spherical symmetry. The free-field-eigenstate spectrum is strongly resonant, and it is commonly believed that the nonlinear coupling leads to energy tran
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::80a87a97bd4e9806e672d8ddd79428d5
https://doi.org/10.1103/physrevd.91.065011
https://doi.org/10.1103/physrevd.91.065011