期刊
PHYSICAL REVIEW A
卷 82, 期 6, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.82.063840
关键词
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资金
- RIKEN FPR program
- National Science Council of Taiwan [98-2112-M-006-002-MY3]
- National Science Foundation [0726909]
- JSPS-RFBR [09-02-92114]
- MEXT Kakenhi on Quantum Cybernetics
- Funding Program for Innovative R&D on ST (FIRST)
A key ingredient of cavity QED is the coupling between the discrete energy levels of an atom and photons in a single-mode cavity. The addition of periodic ultrashort laser pulses allows one to use such a system as a source of single photons-a vital ingredient in quantum information and optical computing schemes. Here we analyze and time-adjust the photon-counting statistics of such a single-photon source and show that the photon statistics can be described by a simple transport-like nonequilibrium model. We then show that there is a one-to-one correspondence of this model to that of nonequilibrium transport of electrons through a double quantum dot nanostructure, unifying the fields of photon-counting statistics and electron-transport statistics. This correspondence empowers us to adapt several tools previously used for detecting quantum behavior in electron-transport systems (e. g., super-Poissonian shot noise and an extension of the Leggett-Garg inequality) to single-photon-source experiments.
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