Zobrazeno 1 - 10
of 76
pro vyhledávání: '"Ng, Keith"'
Publikováno v:
New J. Phys. 24, 103018 (2022)
We analyse numerically the transitions in an Unruh-DeWitt detector, coupled linearly to a massless scalar field, in radial infall in (3+1)-dimensional Schwarzschild spacetime. In the Hartle-Hawking and Unruh states, the transition probability attains
Externí odkaz:
http://arxiv.org/abs/2109.13260
Publikováno v:
In Journal of Manufacturing Processes 30 June 2024 120:1180-1191
Autor:
Ng, Keith Yong Ngee
Publikováno v:
Journal of Knowledge Management, 2022, Vol. 27, Issue 4, pp. 1140-1164.
Externí odkaz:
http://www.emeraldinsight.com/doi/10.1108/JKM-03-2022-0191
Publikováno v:
Phys. Rev. D 98, 125005 (2018)
We investigate entanglement harvesting in AdS$_4$. Applying the general results of [Phys. Rev. D 97, 125011 (2018)], we consider two scenarios: one where two particle detectors are geodesic, with equal redshift; and one where both are static, at uneq
Externí odkaz:
http://arxiv.org/abs/1809.06878
Publikováno v:
Phys. Rev. D 97, 125011 (2018)
We present a new technique for computing entanglement harvesting with Unruh-DeWitt particle detectors. The method is particularly useful in cases where analytic solutions are rare and the Wightman function is known only via its mode expansion for whi
Externí odkaz:
http://arxiv.org/abs/1805.01096
Publikováno v:
Phys. Rev. D 96, 085004 (2017)
We show that a particle detector can distinguish the $\mathbb{RP}^3$ geon from the Schwarzschild black hole, even though they differ only by a topological identification beyond the event horizon. This shows that the detector can read out information
Externí odkaz:
http://arxiv.org/abs/1706.08978
Publikováno v:
Phys. Rev. D 94, 104041 (2016)
We show that a particle detector can distinguish the interior of a hollow shell from flat space for switching times much shorter than the light-crossing time of the shell, even though the local metrics are indistinguishable. This shows that a particl
Externí odkaz:
http://arxiv.org/abs/1606.06292
Autor:
Ng, Keith Yong Ngee
Publikováno v:
Journal of Knowledge Management, 2020, Vol. 24, Issue 6, pp. 1221-1240.
Externí odkaz:
http://www.emeraldinsight.com/doi/10.1108/JKM-01-2020-0071
Publikováno v:
Phys. Rev. D 90, 064003 (2014)
We present novel methods to numerically address the problem of characterizing the response of particle detectors in curved spacetimes. These methods allow for the integration of the Wightman function, at least in principle, in rather general backgrou
Externí odkaz:
http://arxiv.org/abs/1406.2688