University of Surrey

Test tubes in the lab Research in the ATI Dance Research

Coherent gamma photon generation in a Bose–Einstein condensate of135mCs

Marmugi, L, Walker, Philip and Renzoni, F (2017) Coherent gamma photon generation in a Bose–Einstein condensate of135mCs Physics Letters B, 777. pp. 281-285.

18BEC-isomer-plb_marmugi.pdf - Version of Record

Download (334kB) | Preview


We have identified a mechanism of collective nuclear de-excitation in a Bose–Einstein condensate of 135Cs atoms in their isomeric state, 135mCs, suitable for the generation of coherent gamma photons. The process described here relies on coherence transfer from the Bose–Einstein condensate to the photon field, leading to collective decay triggered by spontaneous emission of a gamma photon. The mechanism differs from single-pass amplification, which cannot occur in atomic systems due to the nuclear recoil and the associated large shift between absorption and emission lines, nor does it require the large densities necessary for standard Dicke super-radiance. This overcomes the limitations that have been hindering the production of coherent gamma photons in many systems. Therefore, we propose an approach for generation of coherent gamma rays, which relies on a combination of well established techniques of nuclear and atomic physics, and can be realized with currently available technology.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Physics
Authors :
Marmugi, L
Renzoni, F
Date : 18 December 2017
DOI : 10.1016/j.physletb.2017.12.036
Copyright Disclaimer : ©2017 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (
Uncontrolled Keywords : Gamma-ray lasers Decay isomer Bose–Einstein condensates
Depositing User : Melanie Hughes
Date Deposited : 06 Feb 2018 11:27
Last Modified : 16 Jan 2019 19:07

Actions (login required)

View Item View Item


Downloads per month over past year

Information about this web site

© The University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom.
+44 (0)1483 300800