scholarly journals Coherent dynamics of Bose-Einstein condensates in high-finesse optical cavities

2000 ◽  
Vol 61 (3) ◽  
Author(s):  
Peter Horak ◽  
Stephen M. Barnett ◽  
Helmut Ritsch
Keyword(s):  
Optical Cavities ◽  
Coherent Dynamics ◽  
Bose Einstein ◽  
High Finesse

Bose–Einstein Condensation of Exciton-Polaritons in Organic Microcavities

2020 ◽  
Vol 71 (1) ◽  
pp. 435-459 ◽  
Author(s):  
Jonathan Keeling ◽  
Stéphane Kéna-Cohen
Keyword(s):  
Room Temperature ◽  
Organic Molecules ◽  
Einstein Condensation ◽  
Electronic Excitations ◽  
Optical Mode ◽  
Optical Cavities ◽  
Bose Einstein Condensation ◽  
Exciton Polaritons ◽  
Basic Physics ◽  
Bose Einstein

Bose–Einstein condensation describes the macroscopic occupation of a single-particle mode: the condensate. This state can in principle be realized for any particles obeying Bose–Einstein statistics; this includes hybrid light-matter excitations known as polaritons. Some of the unique optoelectronic properties of organic molecules make them especially well suited for the realization of polariton condensates. Exciton-polaritons form in optical cavities when electronic excitations couple collectively to the optical mode supported by the cavity. These polaritons obey bosonic statistics at moderate densities, are stable at room temperature, and have been observed to form a condensed or lasing state. Understanding the optimal conditions for polariton condensation requires careful modeling of the complex photophysics of organic molecules. In this article, we introduce the basic physics of exciton-polaritons and condensation and review experiments demonstrating polariton condensation in molecular materials.

COHERENT DYNAMICS OF BOSE-EINSTEIN CONDENSATES IN A 1D OPTICAL LATTICE

2002 ◽  
Author(s):  
S. BURGER ◽  
F. S. CATALIOTTI ◽  
C. FORT ◽  
P. MADDALONI ◽  
F. MINARDI ◽  
...  
Keyword(s):  
Optical Lattice ◽  
Coherent Dynamics ◽  
Bose Einstein

Cavity Cooling Below the Recoil Limit

Science ◽  
2012 ◽  
Vol 337 (6090) ◽  
pp. 75-78 ◽  
Author(s):  
Matthias Wolke ◽  
Julian Klinner ◽  
Hans Keßler ◽  
Andreas Hemmerich
Keyword(s):  
Laser Cooling ◽  
Single Photon ◽  
Einstein Condensate ◽  
Purcell Factor ◽  
Optical Cavities ◽  
Bose Einstein Condensate ◽  
Cavity System ◽  
Bose Einstein ◽  
Cavity Cooling ◽  
Conventional Laser

Conventional laser cooling relies on repeated electronic excitations by near-resonant light, which constrains its area of application to a selected number of atomic species prepared at moderate particle densities. Optical cavities with sufficiently large Purcell factors allow for laser cooling schemes, avoiding these limitations. Here, we report on an atom-cavity system, combining a Purcell factor above 40 with a cavity bandwidth below the recoil frequency associated with the kinetic energy transfer in a single photon scattering event. This lets us access a yet-unexplored regime of atom-cavity interactions, in which the atomic motion can be manipulated by targeted dissipation with sub-recoil resolution. We demonstrate cavity-induced heating of a Bose-Einstein condensate and subsequent cooling at particle densities and temperatures incompatible with conventional laser cooling.

An historical overview of cavity-enhanced methods

2005 ◽  
Vol 83 (10) ◽  
pp. 975-999 ◽  
Author(s):  
Barbara A Paldus ◽  
Alexander A Kachanov
Keyword(s):  
Molecular Spectroscopy ◽  
Spectroscopic Methods ◽  
Historical Overview ◽  
Optical Cavities ◽  
The Past ◽  
Mirror Reflectivity ◽  
Cavity Output ◽  
The Rich ◽  
High Finesse ◽  
Rich History

An historical overview of laser-based, spectroscopic methods that employ high-finesse optical resonators is presented. The overview begins with the early work in atomic absorption (1962) and optical cavities (1974) that led to the first mirror reflectivity measurements in 1980. This paper concludes with very recent extensions of cavity-enhanced methods for the study of condensed-phase media and biological systems. Methods described here include cavity ring-down spectroscopy, integrated cavity output spectroscopy, and noise-immune cavity-enhanced optical heterodyne molecular spectroscopy. Given the explosive growth of the field over the past decade, this review does not attempt to present a comprehensive bibliography of all work published in cavity-enhanced spectroscopy, but rather strives to illustrate the rich history, creative diversity, and broad applications potential of these methods. PACS No.: 39.30.+w

Optimal driving of Bose-Einstein condensates in optical cavities

2014 ◽  
Author(s):  
T. Caneva ◽  
T. Calarco ◽  
S. Montangero
Keyword(s):  
Optical Cavities ◽  
Bose Einstein ◽  
Optimal Driving

scholarly journals Exact Evaluation of Statistical Moments in Superradiant Emission

2019 ◽  
Vol 24 (2) ◽  
pp. 66
Author(s):  
Gilberto M. Nakamura ◽  
Brenno Cabella ◽  
Alexandre S. Martinez
Keyword(s):  
Quantum Dots ◽  
Electromagnetic Field ◽  
Discrete Time ◽  
Arbitrary Number ◽  
Condensed Matter ◽  
Statistical Moments ◽  
Birthday Problem ◽  
Exact Evaluation ◽  
Bose Einstein ◽  
High Finesse

Superradiance describes the coherent collective radiation caused by the interaction between many emitters, mediated by a shared electromagnetic field. Recent experiments involving Bose–Einstein condensates coupled to high-finesse cavities and interacting quantum dots in condensed-matter have attracted attention to the superradiant regime as a fundamental step to create quantum technologies. Here, we consider a simplified description of superradiance that allows the evaluation of statistical moments. A correspondence with the classical birthday problem recovers the statistical moments for discrete time and an arbitrary number of emitters. In addition, the correspondence provides a way to calculate the degeneracy of the problem.

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