Zobrazeno 1 - 10
of 53
pro vyhledávání: '"Robert Lasenby"'
Autor:
Kianna Wan, Robert Lasenby
Publikováno v:
Physical Review Research, Vol 4, Iss 3, p 033092 (2022)
We analyze the problem of estimating a scalar parameter g that controls the Hamiltonian of a quantum system subject to Markovian noise. Specifically, we place bounds on the growth rate of the quantum Fisher information with respect to g, in terms of
Externí odkaz:
https://doaj.org/article/3ec7865280264b47bfbabacbb1884b04
Autor:
Robert Lasenby, Anirudh Prabhu
Publikováno v:
Physical Review
In recent years, a growing experimental program has begun to search for sub-GeV dark matter through its scattering with electrons. An associated theoretical challenge is to compute the dark matter scattering rate in experimental targets, and to find
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cf9a7bdc3c8e1296d39d469ad39e1bb2
https://doi.org/10.1103/physrevd.105.095009
https://doi.org/10.1103/physrevd.105.095009
It is well-known that stars have the potential to be excellent dark matter detectors. Infalling dark matter that scatters within stars could lead to a range of observational signatures, including stellar heating, black hole formation, and modified he
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::82471730d5c9c92d713cac448e50850d
http://arxiv.org/abs/2201.05167
http://arxiv.org/abs/2201.05167
Publikováno v:
Physical Review
Black hole superradiance is a powerful probe of light, weakly-coupled hidden sector particles. Many candidate particles, such as axions, generically have self-interactions that can influence the evolution of the superradiant instability. As pointed o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::25398b48f81b72c5467dda285d611b74
http://repo.scoap3.org/api
http://repo.scoap3.org/api
Autor:
Jeff Chiles, Ilya Charaev, Robert Lasenby, Masha Baryakhtar, Junwu Huang, Alexana Roshko, George Burton, Marco Colangelo, Ken Van Tilburg, Asimina Arvanitaki, Sae Woo Nam, Karl K. Berggren
Publikováno v:
Physical Review Letters
Uncovering the nature of dark matter is one of the most important goals of particle physics. Light bosonic particles, such as the dark photon, are well-motivated candidates: they are generally long-lived, weakly interacting, and naturally produced in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ddd839f1996ca2822407541e8c12529a
Autor:
Ken Van Tilburg, Robert Lasenby
Publikováno v:
Physical Review
Production of dark photons inside the Sun forms the basis for the most sensitive probes of such particles over a wide mass range. A small fraction of dark photons is emitted into gravitationally bound orbits, building up a "Solar basin" population th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d2777c5dbdbca15e17be5fc181e32e5b
http://arxiv.org/abs/2008.08594
http://arxiv.org/abs/2008.08594
Autor:
Robert Lasenby
Publikováno v:
Physical Review
For low-mass (frequency $\ll$ GHz) axions, dark matter detection experiments searching for an axion-photon-photon coupling generally have suppressed sensitivity, if they use a static background magnetic field. This geometric suppression can be allevi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::91a2d0791f1c47e08b8a9a36ea5b48be
https://doi.org/10.1103/physrevd.102.015008
https://doi.org/10.1103/physrevd.102.015008
Autor:
Robert Lasenby
Publikováno v:
Physical Review
Light axion-like particles occur in many theories of beyond-Standard-Model physics, and may make up some or all of the universe's dark matter. One of the ways they can couple to the Standard Model is through the electromagnetic $F_{\mu\nu} \tilde F^{
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5376b13d7060196d146fd5c2518d18e3
Autor:
Robert Lasenby
Publikováno v:
Proceedings of the International Astronomical Union. 12:273-278
Bosonic fields around a spinning black hole can be amplified via ‘superradiance’, a wave analogue of the Penrose process, which extracts energy and momentum from the black hole. For hypothetical ultra-light bosons, with Compton wavelengths on ≳
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f7f911136454724cf5a0d260506a8e8
https://doi.org/10.1017/s1743921317002319
https://doi.org/10.1017/s1743921317002319
Autor:
Robert Lasenby
Publikováno v:
Journal of Cosmology and Astroparticle Physics. 2020:034-034
So far, the observed effects of dark matter are compatible with it having purely gravitational interactions. However, in many models, dark matter has additional interactions with itself, with the Standard Model, and/or with additional hidden sector s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ac7b6fcd1cfc8f58e2fc0abd70e18d29
https://doi.org/10.1088/1475-7516/2020/11/034
https://doi.org/10.1088/1475-7516/2020/11/034