Controlling the transport of single photons by tuning the frequency of either one or two cavities in an array of coupled cavities

Journal Article · Thu Apr 15 04:00:00 EDT 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.81.042304· OSTI ID:21413327

Jieqiao, Liao; Gong, Z R; Sun, C P ^[1]; Lan, Zhou ^[2]; Yuxi, Liu ^[1]; Nori, Franco ^[3]

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1. Advanced Science Institute, The Institute of Physical and Chemical Research (RIKEN), Wako-shi 351-0198 (Japan)
2. Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education, Hunan Normal University, Changsha 410081 (China) and Department of Physics, Hunan Normal University, Changsha 410081 (China)
3. Advanced Science Institute, Institute of Physical and Chemical Research (RIKEN), Wako-shi 351-0198 (Japan)

We theoretically study how to control transport, bound states, and resonant states of a single photon in a one-dimensional coupled-cavity array. We find that the transport of a single photon in the cavity array can be controlled by tuning the frequency of either one or two cavities. If one of the cavities in the array has a tunable frequency, and its frequency is tuned to be larger (or smaller) than those of other cavities, then there is a photon bound state above (or below) the energy band of the coupled-cavity array. However, if two cavities in the array have tunable frequencies, then there exist both bound states and resonant states. If the frequencies of the two cavities are chosen to be much larger than those of other cavities, and the hopping couplings between any two nearest-neighbor cavities are weak, then a single photon with a resonant wave vector can be trapped in the region between the two frequency-tunable cavities. In this case, a quantum supercavity can be formed by these two frequency-tunable cavities. We also study how to apply this photon transport control to an array of coupled superconducting transmission line resonators.

• OSTI ID: 21413327
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 4 Vol. 81; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BOSONS
BOUND STATE
CONTROL
ELECTRONIC EQUIPMENT
ELEMENTARY PARTICLES
EQUIPMENT
MASSLESS PARTICLES
NEUTRAL-PARTICLE TRANSPORT
PHOTON TRANSPORT
PHOTONS
POWER TRANSMISSION LINES
RADIATION TRANSPORT
RESONATORS
TENSORS
TRAPPING
TUNING
VECTORS