|
| related topics |
| {photon, photons, single} |
| {state, phys, rev} |
| {light, field, probe} |
| {states, state, optimal} |
| {state, states, coherent} |
| {time, wave, function} |
| {energy, gaussian, time} |
| {vol, operators, histories} |
| {measurement, state, measurements} |
|
Quantum state tomography of single photons in the spectral degree of
freedom
Peter P. Rohde
abstract: Quantum State Tomography (QST) of optical states is typically performed in
the photon number degree of freedom, a procedure which is well understood and
has been experimentally demonstrated. However, optical states have other
degrees of freedom than just photon number, such as the spatial and
temporal/spectral ones. Full characterization of photonic states requires state
reconstruction in these additional degrees of freedom. In this paper we present
a technique for performing QST of single photon states in the spectral degree
of freedom. This is of importance, for example, in quantum information
processing applications, which typically impose strict requirements on the
purity and distinguishability of independently produced single photons. The
described technique allows for full reconstruction of the spectral density
matrix, allowing the purity and distinguishability of different sources to be
readily calculated.
- oai_identifier:
- oai:arXiv.org:quant-ph/0609005
- categories:
- quant-ph
- comments:
- 4 pages
- arxiv_id:
- quant-ph/0609005
- created:
- 2006-09-01
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