TY - JOUR
T1 - Creation of entangled spin qubits between distant quantum dots
AU - Yokoshi, Nobuhiko
AU - Imamura, Hiroshi
AU - Kosaka, Hideo
N1 - Copyright:
Copyright 2013 Elsevier B.V., All rights reserved.
PY - 2013/10/25
Y1 - 2013/10/25
N2 - We theoretically show that an entangled state can be prepared between distant heavy-hole spin qubits by using III-V semiconductor quantum dots (QDs) in cascaded cavities. In this scheme, using quantum state transfer between photons and carrier spins, the local spin-singlet state in a virtually excited trion is stretched into the two separated QDs via a single-photon transmission. We calculate the effective Liouville equation and determine the optimal conditions for entanglement creation. We also discuss the possibility of distributing entangled electron spins in the same manner.
AB - We theoretically show that an entangled state can be prepared between distant heavy-hole spin qubits by using III-V semiconductor quantum dots (QDs) in cascaded cavities. In this scheme, using quantum state transfer between photons and carrier spins, the local spin-singlet state in a virtually excited trion is stretched into the two separated QDs via a single-photon transmission. We calculate the effective Liouville equation and determine the optimal conditions for entanglement creation. We also discuss the possibility of distributing entangled electron spins in the same manner.
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U2 - 10.1103/PhysRevB.88.155321
DO - 10.1103/PhysRevB.88.155321
M3 - Article
AN - SCOPUS:84887097209
VL - 88
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
SN - 0163-1829
IS - 15
M1 - 155321
ER -