Research output: Contribution to journal › Article › peer-review
Control of parameters of quantum memory for light in a cavity configuration. / Kuz’min, V. V.; Vetlugin, A. N.; Sokolov, I. V.
In: Optics and Spectroscopy (English translation of Optika i Spektroskopiya), Vol. 119, No. 6, 01.12.2015, p. 1004-1009.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - Control of parameters of quantum memory for light in a cavity configuration
AU - Kuz’min, V. V.
AU - Vetlugin, A. N.
AU - Sokolov, I. V.
N1 - Publisher Copyright: © 2015, Pleiades Publishing, Ltd. Copyright: Copyright 2015 Elsevier B.V., All rights reserved.
PY - 2015/12/1
Y1 - 2015/12/1
N2 - Control of time dependences of waveforms is important for the application of optical signals in the nonclassical state that are recorded in various quantum-memory devices. Matching of waveforms at the signal detectors is needed for measurements using optical mixing (homodyne detection), detection of entangled states, etc. Earlier results for cavity quantum memory on an ensemble of cold atoms show that the waveform of the strong control field can be changed in such a way that the profile of optical signal recorded and readout from a collective atomic spin is convenient for measurements. In the course of recording, the control field provides the suppression of the reflection loss of the input signal related to the destructive interference of the signal and local field at the coupling mirror (impedance matching). Using an example of memory reading, we show that impedance matching provides additional possibilities for variations in the control field and allows efficient generation of output quantum signals with predetermined waveforms convenient for experimental measurements.
AB - Control of time dependences of waveforms is important for the application of optical signals in the nonclassical state that are recorded in various quantum-memory devices. Matching of waveforms at the signal detectors is needed for measurements using optical mixing (homodyne detection), detection of entangled states, etc. Earlier results for cavity quantum memory on an ensemble of cold atoms show that the waveform of the strong control field can be changed in such a way that the profile of optical signal recorded and readout from a collective atomic spin is convenient for measurements. In the course of recording, the control field provides the suppression of the reflection loss of the input signal related to the destructive interference of the signal and local field at the coupling mirror (impedance matching). Using an example of memory reading, we show that impedance matching provides additional possibilities for variations in the control field and allows efficient generation of output quantum signals with predetermined waveforms convenient for experimental measurements.
UR - http://www.scopus.com/inward/record.url?scp=84949294349&partnerID=8YFLogxK
U2 - 10.1134/S0030400X15120152
DO - 10.1134/S0030400X15120152
M3 - Article
AN - SCOPUS:84949294349
VL - 119
SP - 1004
EP - 1009
JO - OPTICS AND SPECTROSCOPY
JF - OPTICS AND SPECTROSCOPY
SN - 0030-400X
IS - 6
ER -
ID: 73494774