Vacuum Rabi oscillation

Vacuum Rabi oscillation

A vacuum Rabi oscillation is a damped oscillation of an initially excited atom coupled to an electromagnetic resonator or cavity in which the atom alternately emits photon(s) into a single-mode electromagnetic cavity and reabsorbs them. The atom interacts with a single-mode field confined to a a limited volume "V" in an optical cavity. cite book
author= Hiroyuki Yokoyama & Ujihara K
title=Spontaneous emission and laser oscillation in microcavities
publisher= CRC Press
location=Boca Raton
page=p. 6
year=1995
isbn=0849337860
url=http://books.google.com/books?id=J_0ZAwf6AQ0C&printsec=frontcover&dq=%22spontaneous+emission%22&lr=&as_brr=0&sig=QbNGpi5P0uTHxwhHDECXhG2VA9M#PPA6,M1] cite book
author= Kerry Vahala
title=Optical microcavities
publisher= World Scientific
location=Singapore
page=p. 368
year=2004
isbn=9812387757
url=http://books.google.com/books?id=_HZb9ha7gysC&pg=PA369&dq=vacuum+%22Rabi+frequency%22&lr=&as_brr=0&sig=bQ7fPtE-A53x3yRiu51dXWpVZL0#PPA368,M1] cite book
author= Rodney Loudon
title=The quantum theory of light
publisher= Oxford University Press
location=Oxford UK
page=172
year=2000
isbn=0198501773
url=http://books.google.com/books?id=AEkfajgqldoC&pg=PA172&dq=vacuum+%22Rabi+frequency%22&lr=&as_brr=0&sig=CCmRh3g_ZE1xWCDXiJ3nUt3Pfmg] Spontaneous emission results as a consequence of coupling between the atom and the vacuum fluctuations of the cavity field. The vacuum Rabi frequency is given by

:: omega = frac {2}{ hbar } mathcal{E} f( mathbf{R} )langle mathbf{p cdot epsilon} angle .

where R is the location of the atom, "f" ( R ) = exp ( i k.R) for plane-wave fields, ε is the field polarization, mathcal{E} = [ ħ ωk / ( 2 ε0 V )] 1/2 is the electric field per photon, and < p.ε > is the dipole matrix element.

References and notes

ee also

*Spontaneous emission
*Vacuum fluctuations
*Jaynes-Cummings model
*Rabi frequency
*Rabi cycle
*Rabi problem


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