How to Project onto an Arbitrary Single-Photon Wavepacket
- URL: http://arxiv.org/abs/2005.11305v3
- Date: Thu, 5 Nov 2020 20:46:37 GMT
- Title: How to Project onto an Arbitrary Single-Photon Wavepacket
- Authors: Tzula B. Propp and Steven J. van Enk
- Abstract summary: We construct ideal and more realistic positive operator-valued measures (POVMs) that project onto arbitrary single-photon wavepackets with high efficiency and low noise.
We will give a fully quantum description of the entire photo detection process, give prescriptions for performing single-shot Heisenberg-limited time-frequency measurements of single photons, and discuss fundamental limits and trade-offs inherent to single-photon detection.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: The time-frequency degree of freedom of the electromagnetic field is the
final frontier for single-photon measurements. The temporal and spectral
distribution a measurement retrodicts (that is, the state it projects onto) is
determined by the detector's intrinsic resonance structure. In this paper, we
construct ideal and more realistic positive operator-valued measures (POVMs)
that project onto arbitrary single-photon wavepackets with high efficiency and
low noise. We discuss applications to super-resolved measurements and quantum
communication. In doing so we will give a fully quantum description of the
entire photo detection process, give prescriptions for (in principle)
performing single-shot Heisenberg-limited time-frequency measurements of single
photons, and discuss fundamental limits and trade-offs inherent to
single-photon detection.
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