Henning Schomerus and John P Robinson 2007 New J. Phys. 9 67 doi:10.1088/1367-2630/9/3/067
Entanglement between static and flying qubits in an Aharonov–Bohm double electrometer
Henning Schomerus and John P Robinson
Show affiliationsWe consider the phase-coherent transport of electrons passing through an Aharonov–Bohm ring while interacting with a tunnel charge in a double quantum dot (representing a charge qubit) which couples symmetrically to both arms of the ring. For Aharonov–Bohm flux ΦAB = h/2e we find that electrons can only be transmitted when they flip the charge qubit's pseudospin parity an odd number of times. The perfect correlations of the dynamics of the pseudospin and individual electronic transmission and reflection events can be used to entangle the charge qubit with an individual passing electron.
- PACS
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73.23.-b Electronic transport in mesoscopic systems
03.67.Mn Entanglement measures, witnesses, and other characterizations
03.67.Lx Quantum computation architectures and implementations
- Subjects
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Surfaces, interfaces and thin films
- Dates
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Issue 3 (March 2007)
Received 10 November 2006
Published 21 March 2007
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Entanglement between static and flying qubits in an Aharonov–Bohm double electrometer
Henning Schomerus and John P Robinson 2007 New J. Phys. 9 67
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