Abstract
The possibility of maser action using a current-biased mesoscopic Josephson junction in a high-Q microcavity is discussed. A mesoscopic Josephson junction behaves like an artificial atom as far as the interaction with the photon field is concerned. Under a certain bias current, the Josephson "atom" is resonantly excited or pumped by quantum-mechanical fluctuations of the Josephson phase, i.e., macroscopic resonant tunneling. When the pumping overcomes the loss of photons from the cavity, maser action is possible. Quantum statistical properties of photons are also investigated numerically, taking into acount the microcavity effect on the basis of a Jaynes-Cummings model with pumping and cavity damping. We found that a mesoscopic Josephson junction within the high-Q microcavity acts as a thresholdless maser with sub-Poissonian photon statstics.
| Original language | English |
|---|---|
| Pages (from-to) | 1729-1732 |
| Number of pages | 4 |
| Journal | Physical Review A - Atomic, Molecular, and Optical Physics |
| Volume | 54 |
| Issue number | 2 |
| Publication status | Published - 1996 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
Cite this
Josephson cascade micromaser. / Hatakenaka, Noriyuki; Kurihara, Susumu.
In: Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 54, No. 2, 1996, p. 1729-1732.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Josephson cascade micromaser
AU - Hatakenaka, Noriyuki
AU - Kurihara, Susumu
PY - 1996
Y1 - 1996
N2 - The possibility of maser action using a current-biased mesoscopic Josephson junction in a high-Q microcavity is discussed. A mesoscopic Josephson junction behaves like an artificial atom as far as the interaction with the photon field is concerned. Under a certain bias current, the Josephson "atom" is resonantly excited or pumped by quantum-mechanical fluctuations of the Josephson phase, i.e., macroscopic resonant tunneling. When the pumping overcomes the loss of photons from the cavity, maser action is possible. Quantum statistical properties of photons are also investigated numerically, taking into acount the microcavity effect on the basis of a Jaynes-Cummings model with pumping and cavity damping. We found that a mesoscopic Josephson junction within the high-Q microcavity acts as a thresholdless maser with sub-Poissonian photon statstics.
AB - The possibility of maser action using a current-biased mesoscopic Josephson junction in a high-Q microcavity is discussed. A mesoscopic Josephson junction behaves like an artificial atom as far as the interaction with the photon field is concerned. Under a certain bias current, the Josephson "atom" is resonantly excited or pumped by quantum-mechanical fluctuations of the Josephson phase, i.e., macroscopic resonant tunneling. When the pumping overcomes the loss of photons from the cavity, maser action is possible. Quantum statistical properties of photons are also investigated numerically, taking into acount the microcavity effect on the basis of a Jaynes-Cummings model with pumping and cavity damping. We found that a mesoscopic Josephson junction within the high-Q microcavity acts as a thresholdless maser with sub-Poissonian photon statstics.
UR - http://www.scopus.com/inward/record.url?scp=5744247838&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=5744247838&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:5744247838
VL - 54
SP - 1729
EP - 1732
JO - Physical Review A
JF - Physical Review A
SN - 2469-9926
IS - 2
ER -