Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Singlet-triplet filtering and entanglement in a quantum dot structure.
AU - Giavaras, G.
AU - Jefferson, J. H.
AU - Fearn, M.
AU - Ashley, T.
AU - Lambert, Colin J.
PY - 2007
Y1 - 2007
N2 - We consider two interacting electrons in a semiconductor quantum dot structure, which consists of a small dot within a larger dot, and demonstrate a singlet-triplet filtering mechanism which involves spin-dependent resonances and can generate entanglement. By studying the exact time evolution of singlet and triplet states we show how the degree of both filtering and spin entanglement can be tuned using a time-dependent gate voltage.
AB - We consider two interacting electrons in a semiconductor quantum dot structure, which consists of a small dot within a larger dot, and demonstrate a singlet-triplet filtering mechanism which involves spin-dependent resonances and can generate entanglement. By studying the exact time evolution of singlet and triplet states we show how the degree of both filtering and spin entanglement can be tuned using a time-dependent gate voltage.
KW - semiconductor quantum dots
KW - quantum entanglement
U2 - 10.1103/PhysRevB.75.085302
DO - 10.1103/PhysRevB.75.085302
M3 - Journal article
VL - 75
SP - 085302
JO - Physical review B
JF - Physical review B
SN - 1098-0121
IS - 8
ER -