Zobrazeno 1 - 10
of 61
pro vyhledávání: '"Makoto Natsuume"'
Autor:
Makoto Natsuume, Takashi Okamura
Publikováno v:
Journal of High Energy Physics, Vol 2019, Iss 12, Pp 1-19 (2019)
Abstract We investigate a new property of retarded Green’s functions using AdS/CFT. The Green's functions are not unique at special points in complex momentum space. This arises because there is no unique incoming mode at the horizon and is similar
Externí odkaz:
https://doaj.org/article/873695766a3c4e9d99b15424d6ffb0e2
Autor:
Takashi Okamura, Makoto Natsuume
Publikováno v:
Physical Review
The holographic superconductor is the holographic dual of superconductivity, but there is no Meissner effect in the standard holographic superconductor. This is because the boundary Maxwell field is added as an external source and is not dynamical. W
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bf8ee9b90cca8574ead90356c1024fe1
http://arxiv.org/abs/2207.07182
http://arxiv.org/abs/2207.07182
Autor:
Takashi Okamura, Makoto Natsuume
Publikováno v:
Journal of High Energy Physics, Vol 2019, Iss 12, Pp 1-19 (2019)
Journal of High Energy Physics
Journal of High Energy Physics
We investigate a new property of retarded Green’s functions using AdS/CFT. The Green's functions are not unique at special points in complex momentum space. This arises because there is no unique incoming mode at the horizon and is similar to the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6098a01b57c9066821a425221c9297ac
https://doaj.org/article/873695766a3c4e9d99b15424d6ffb0e2
https://doaj.org/article/873695766a3c4e9d99b15424d6ffb0e2
Autor:
Takashi Okamura, Makoto Natsuume
We point out little discussed phenomenon in elementary quantum mechanics. In one-dimensional potential scattering problems, the scattering amplitudes are not uniquely determined at special points in parameter space. We examine a few explicit examples
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e05e8d6501ad296849b1bc3a44b06335
http://arxiv.org/abs/2108.07832
http://arxiv.org/abs/2108.07832
Autor:
Makoto Natsuume, Takashi Okamura
Publikováno v:
Physical Review
We study the pole-skipping phenomenon of the scalar retarded Green's function in the rotating BTZ black hole background. In the static case, the pole-skipping points are typically located at negative imaginary Matsubara frequencies $\omega=-(2\pi T)n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::662bde1904a0d48129adcf17a1171504
Autor:
Makoto Natsuume, Takashi Okamura
Publikováno v:
Physical Review
Recently, it is shown that many Green's functions are not unique at special points in complex momentum space using AdS/CFT. This phenomenon is similar to the pole-skipping in holographic chaos, and the special points are typically located at $\omega_
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::60babc72ac1c2fbdb0075fbf142a6673
http://repo.scoap3.org/api
http://repo.scoap3.org/api
Autor:
Takashi Okamura, Makoto Natsuume
We investigate the "pole-skipping" phenomenon in holographic chaos. According to the pole-skipping, the energy-density Green's function is not unique at a special point in complex momentum plane. This arises because the bulk field equation has two re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::25c00b078b222bf4c71fa4ba34445044
http://arxiv.org/abs/1905.12014
http://arxiv.org/abs/1905.12014
Autor:
Makoto Natsuume, Takashi Okamura
We construct an analytic solution for a one-parameter family of holographic superconductors in asymptotically Lifshitz spacetimes. We utilize this solution to explore various properties of the systems such as (1) the superfluid phase background and t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::55faa1fcd4f47c84efc26d7ddb4ee945
http://arxiv.org/abs/1801.03154
http://arxiv.org/abs/1801.03154
Autor:
Makoto Natsuume, Takashi Okamura
Publikováno v:
Physical Review D. 95
The Kibble-Zurek (KZ) mechanism describes the generations of topological defects when a system undergoes a second-order phase transition via quenches. We study the holographic KZ scaling using holographic superconductors. The scaling can be understoo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::edca0aba9e3075273d386214c6c635be
https://doi.org/10.1103/physrevd.95.106009
https://doi.org/10.1103/physrevd.95.106009
Autor:
Makoto Natsuume
This book describes applications of the AdS/CFT duality to the'real world.'The AdS/CFT duality is an idea that originated from string theory and is a powerful tool for analyzing strongly-coupled gauge theories using classical gravitational theories.