Rights statement: © 2010 The American Physical Society
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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 - Storage of multiple coherent microwave excitations in an electron spin ensemble
AU - Wu, Hua
AU - George, Richard
AU - Wesenberg, Janus
AU - Molmer, Klaus
AU - Schuster, David
AU - Schoelkopf, Robert
AU - Itoh, Koehi
AU - Ardavan, Arzhang
AU - Morton, John
AU - Briggs, Andrew
N1 - © 2010 The American Physical Society
PY - 2010/9/27
Y1 - 2010/9/27
N2 - Strong coupling between a microwave photon and electron spins, which could enable a long-lived quantum memory element for superconducting qubits, is possible using a large ensemble of spins. This represents an inefficient use of resources unless multiple photons, or qubits, can be orthogonally stored and retrieved. Here we employ holographic techniques to realize a coherent memory using a pulsed magnetic field gradient and demonstrate the storage and retrieval of up to 100 weak 10 GHz coherent excitations in collective states of an electron spin ensemble. We further show that such collective excitations in the electron spin can then be stored in nuclear spin states, which offer coherence times in excess of seconds.
AB - Strong coupling between a microwave photon and electron spins, which could enable a long-lived quantum memory element for superconducting qubits, is possible using a large ensemble of spins. This represents an inefficient use of resources unless multiple photons, or qubits, can be orthogonally stored and retrieved. Here we employ holographic techniques to realize a coherent memory using a pulsed magnetic field gradient and demonstrate the storage and retrieval of up to 100 weak 10 GHz coherent excitations in collective states of an electron spin ensemble. We further show that such collective excitations in the electron spin can then be stored in nuclear spin states, which offer coherence times in excess of seconds.
U2 - 10.1103/PhysRevLett.105.140503
DO - 10.1103/PhysRevLett.105.140503
M3 - Journal article
VL - 105
JO - Physical review letters
JF - Physical review letters
SN - 1079-7114
IS - 14
M1 - 140503
ER -