Zobrazeno 1 - 10
of 78
pro vyhledávání: '"Ofer Firstenberg"'
Publikováno v:
Communications Physics, Vol 6, Iss 1, Pp 1-6 (2023)
Abstract Coherent optical memories will likely play an important role in future quantum communication networks. Among the different platforms, memories based on ladder-type orbital transitions in atomic gasses offer high bandwidth (>100 MHz), continu
Externí odkaz:
https://doaj.org/article/e8ee0fb8c3b0479b96c91a11d72337e0
Publikováno v:
New Journal of Physics, Vol 25, Iss 3, p 035001 (2023)
This tutorial introduces the theoretical and experimental basics of electromagnetically induced transparency (EIT) in thermal alkali vapors. We first give a brief phenomenological description of EIT in simple three-level systems of stationary atoms a
Externí odkaz:
https://doaj.org/article/bf0f592f816a450abd8a0be471723e93
Autor:
Chitram Banerjee, Yakov Solomons, A. Nicholas Black, Giulia Marcucci, David Eger, Nir Davidson, Ofer Firstenberg, Robert W. Boyd
Publikováno v:
Physical Review Research, Vol 4, Iss 3, p 033124 (2022)
A moving dielectric medium can displace the optical path of light passing through it, a phenomenon known as the Fresnel-Fizeau optical drag effect. The resulting displacement is proportional to the medium's velocity. In this paper, we report on the o
Externí odkaz:
https://doaj.org/article/971c4f96778f49e490f47464de933edd
Publikováno v:
PRX Quantum, Vol 3, Iss 1, p 010305 (2022)
An ensemble of noble-gas nuclear spins is a unique quantum system that could maintain coherence for many hours at room temperature and above, owing to exceptional isolation from the environment. This isolation, however, is a mixed blessing, limiting
Externí odkaz:
https://doaj.org/article/0f7f02af969d48bf8c2dec0b71aa5e0f
Autor:
Or Katz, Ofer Firstenberg
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-6 (2018)
Storing quantum memories for a long time is important and challenging for quantum communication. Here the authors demonstrate a storage time of about 1 s using spin exchange relaxation free resonance in cesium vapor.
Externí odkaz:
https://doaj.org/article/debd410d7654409cad9e524b224e85a5
Publikováno v:
New Journal of Physics, Vol 21, Iss 10, p 103024 (2019)
Doppler broadening in thermal ensembles degrades the absorption cross-section and the coherence time of collective excitations. In two photon transitions, it is common to assume that this problem becomes worse with larger wavelength mismatch. Here we
Externí odkaz:
https://doaj.org/article/57348818b84745c4a8c81f6e4b0cffb9
Autor:
Tomáš Opatrný, Šimon Bräuer, Abraham G. Kofman, Avijit Misra, Nilakantha Meher, Ofer Firstenberg, Eilon Poem, Gershon Kurizki
Publikováno v:
Science Advances. 9
We propose heat machines that are nonlinear, coherent, and closed systems composed of few field (oscillator) modes. Their thermal-state input is transformed by nonlinear Kerr interactions into nonthermal (non-Gaussian) output with controlled quantum
Publikováno v:
Proc Natl Acad Sci U S A
Phase transitions are emergent phenomena where microscopic interactions drive a disordered system into a collectively ordered phase. Near the boundary between two phases, the system can exhibit critical, scale-invariant behavior. Here, we report on a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ce2c16e8e4e3e28ce238ed5a06a985d6
http://arxiv.org/abs/2104.08622
http://arxiv.org/abs/2104.08622
Autor:
Ofer Firstenberg
Publikováno v:
Optical and Quantum Sensing and Precision Metrology.
Nuclear spins of noble gases feature extremely long coherence times but are inaccessible to optical photons. Here we realize a coherent interface between light and noble-gas spins that is mediated by alkali atoms. We demonstrate the optical excitatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::927295daa525f26ba5c530982f3796a8
http://arxiv.org/abs/2102.00229
http://arxiv.org/abs/2102.00229