TY - JOUR
T1 - Multipulse addressing of a raman quantum memory
T2 - configurable beam splitting and efficient readout
AU - Reim, Klaus F
AU - Nunn, Josh
AU - Jin, X-M
AU - Michelberger, PS
AU - Champion, TFM
AU - England, Duncan G
AU - Lee, KC
AU - Kolthammer, WS
AU - Langford, NK
AU - Walmsley, IA
PY - 2012
Y1 - 2012
N2 - Quantum memories are vital to the scalability of photonic quantum information processing (PQIP), since the storage of photons enables repeat-until-success strategies. On the other hand, the key element of all PQIP architectures is the beam splitter, which allows us to coherently couple optical modes. Here, we show how to combine these crucial functionalities by addressing a Raman quantum memory with multiple control pulses. The result is a coherent optical storage device with an extremely large time bandwidth product, that functions as an array of dynamically configurable beam splitters, and that can be read out with arbitrarily high efficiency. Networks of such devices would allow fully scalable PQIP, with applications in quantum computation, long distance quantum communications and quantum metrology.
AB - Quantum memories are vital to the scalability of photonic quantum information processing (PQIP), since the storage of photons enables repeat-until-success strategies. On the other hand, the key element of all PQIP architectures is the beam splitter, which allows us to coherently couple optical modes. Here, we show how to combine these crucial functionalities by addressing a Raman quantum memory with multiple control pulses. The result is a coherent optical storage device with an extremely large time bandwidth product, that functions as an array of dynamically configurable beam splitters, and that can be read out with arbitrarily high efficiency. Networks of such devices would allow fully scalable PQIP, with applications in quantum computation, long distance quantum communications and quantum metrology.
UR - http://doi.org/10.1103/PhysRevLett.108.263602
U2 - 10.1103/PhysRevLett.108.263602
DO - 10.1103/PhysRevLett.108.263602
M3 - Article
SN - 0031-9007
VL - 108
JO - Physical Review Letters
JF - Physical Review Letters
IS - 26
M1 - 263602
ER -