dc.contributor.author |
Stitely, Kevin C |
|
dc.contributor.author |
Giraldo, Andrus |
|
dc.contributor.author |
Krauskopf, Bernd |
|
dc.contributor.author |
Parkins, Scott |
|
dc.date.accessioned |
2022-03-04T03:42:42Z |
|
dc.date.available |
2022-03-04T03:42:42Z |
|
dc.identifier.citation |
Arxiv (2201.12775). 30 Jan 2022. 25 pages |
|
dc.identifier.uri |
https://hdl.handle.net/2292/58446 |
|
dc.description.abstract |
We study the effect of spontaneous emission and incoherent atomic pumping on
the nonlinear semiclassical dynamics of the unbalanced Dicke model -- a
generalization of the Dicke model that features independent coupling strengths
for the co- and counter-rotating interaction terms. As well as the ubiquitous
superradiant behavior the Dicke model is well-known for, the addition of
spontaneous emission combined with the presence of strong counter-rotating
terms creates laser-like behavior termed counter-lasing. These states appear in
the semiclassical model as stable periodic orbits. We perform a comprehensive
dynamical analysis of the appearance of counter-lasing in the unbalanced Dicke
model subject to strong cavity dissipation, such that the cavity field can be
adiabatically eliminated to yield an effective Lipkin-Meshkov-Glick (LMG)
model. If the coupling strength of the co-rotating interactions is small, then
the counter-lasing phase appears via a Hopf bifurcation of the de-excited
state. We find that if the rate of spontaneous emission is small, this can lead
to resurgent superradiant pulses. However, if the co-rotating coupling is
larger, then the counter-lasing phase must emerge via the steady-state
superradiant phase. Such a transition is the result of the competition of the
coherent and incoherent processes that drive superradiance and counter-lasing,
respectively. We observe a surprisingly complex transition between the two,
associated with the formation of a chaotic attractor over a thin transitional
parameter region. |
|
dc.rights |
Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. |
|
dc.rights.uri |
https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm |
|
dc.rights.uri |
https://creativecommons.org/licenses/by/4.0/ |
|
dc.subject |
quant-ph |
|
dc.subject |
quant-ph |
|
dc.subject |
nlin.CD |
|
dc.subject |
physics.optics |
|
dc.title |
Lasing and counter-lasing phase transitions in a cavity QED system |
|
dc.type |
Journal Article |
|
dc.date.updated |
2022-02-03T17:44:31Z |
|
dc.rights.holder |
Copyright: The author |
en |
pubs.author-url |
http://arxiv.org/abs/2201.12775v1 |
|
dc.rights.accessrights |
http://purl.org/eprint/accessRights/OpenAccess |
en |
pubs.elements-id |
881470 |
|