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76 papers · 1 filter
The resonance fluorescence cascade of a laser-excited two-level atom
Serge Reynaud
The cascade of fluorescence photons by a two-level atom excited by coherent laser light is reviewed. The discussion emphasizes the random nature of resonance fluorescence and uses…
Superradiant phononic emission from the analog spin ergoregion in a two-component Bose-Einstein condensate
Anna Berti, Luca Giacomelli, Iacopo Carusotto
We make use of an analog gravity perspective to obtain a physical understanding of hydrodynamic instabilities stemming from the presence of quantized vortices in two-component atom…
Experimental tests of Bell's inequalities: A first-hand account by Alain Aspect
William D. Phillips, Jean Dalibard
On 04 October 2022, the Royal Swedish Academy of Sciences announced that the Nobel Prize for Physics of 2022 was awarded jointly to Alain Aspect, John Clauser, and Anton Zeilinger…
Ehlers, Carroll, Charges and Dual Charges
Nehal Mittal, P. Marios Petropoulos, David Rivera-Betancour +1
We unravel the boundary manifestation of Ehlers' hidden Möbius symmetry present in four-dimensional Ricci-flat spacetimes that enjoy a time-like isometry and are Petrov-algebraic.…
Analogue gravity and the Hawking effect: historical perspective and literature review
Carla R Almeida, Maxime J Jacquet
Reasoning by analogies permeates theoretical developments in physics and astrophysics, motivated by the unreachable nature of many phenomena at play. For example, analogies have be…
Spectrum of collective excitations of a quantum fluid of polaritons
Ferdinand Claude, Maxime J. Jacquet, Iacopo Carusotto +3
We use a recently developed high-resolution coherent probe spectroscopy method to investigate the dispersion of collective excitations of a polaritonic quantum fluid. We measure th…