dc.contributor.author |
Kronenwett, Matthias |
en |
dc.date.accessioned |
2008-08-28T21:17:09Z |
en |
dc.date.available |
2008-08-28T21:17:09Z |
en |
dc.date.issued |
2007 |
en |
dc.identifier |
THESIS 07-427 |
en |
dc.identifier.uri |
http://hdl.handle.net/2292/2866 |
en |
dc.description |
Restricted Item. Print thesis available in the University of Auckland Library or may be available through Interlibrary Loan. |
en |
dc.description.abstract |
Cavity quantum electrodynamics (cavity QED) systems, in which two-level atoms
interact with a single cavity mode, have been studied extensively over the past years.
Recently, the first explicitly two-mode cavity QED experiments were carried out. In
this thesis, we compute photon correlation functions in a cavity QED system where a
single atom couples to two cavity modes with orthogonal linear polarisations. We
take into account the full atomic level structure for an F = 3 to F0 = 4 transition,
and consider the case where one cavity mode is resonantly driven by a coherent field,
while light in the other cavity mode is generated only through atomic emission.
From analytic investigations in the weak-excitation limit, we find that two orthogonal
manifolds of basis states exist, with transitions between the two manifolds
occurring precisely whenever a photon from the non-driven mode is emitted. As a
qualitative result, the system displays correlations on two distinct time scales: one, a
short time scale, determined by the atomic and cavity-mode decay times; the other
(not present in single-mode cavity QED), a much longer time scale, determined by
the non-driven-mode emission rate.
For a quantitative treatment, we use standard quantum regression formulas and
numerical solutions of the master equation for the system density operator to compute
steady-state properties and photon correlation functions in the weak-excitation regime;
for this, we truncate the cavity mode Hilbert spaces at two-photon states. As with
our analytical investigations, we find an extremely long correlation time at the
lowest level of excitation, and a shortening of this correlation time as the level of
excitation is increased. From a Monte-Carlo simulation based on a quantum trajectory
unravelling of the master equation, we recover this dynamic, and explore higher levels
of excitations. |
en |
dc.language.iso |
en |
en |
dc.publisher |
ResearchSpace@Auckland |
en |
dc.relation.isreferencedby |
UoA1759853 |
en |
dc.rights |
Whole Document restricted |
en |
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. |
en |
dc.rights.uri |
https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm |
en |
dc.title |
Photon Correlations in Two-Mode Cavity Quantum Electrodynamics |
en |
dc.type |
Thesis |
en |
thesis.degree.discipline |
Physics |
en |
thesis.degree.grantor |
The University of Auckland |
en |
thesis.degree.level |
Masters |
en |
thesis.degree.name |
Master of Science |
en |
dc.subject.marsden |
Fields of Research::240000 Physical Sciences |
en |
dc.rights.accessrights |
http://purl.org/eprint/accessRights/ClosedAccess |
en |
dc.identifier.wikidata |
Q112870397 |
|