Ultrafast control of nuclear spins using only microwave pulses: Towards switchable solid-state quantum gates
Source: Phys. Rev. A 81, 020305 (2010); doi:10.1103/PhysRevA.81.020305
Published 24 February 2010
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We demonstrate the control of the 
-proton nuclear spin, I =1/2, coupled to the stable radical ·CH(COOH)2, S =1/2, in a 
-irradiated malonic acid single crystal using only microwave pulses. We show that, depending on the state of the electron spin (mS=±1/2), the nuclear spin can be locked in a desired state or oscillate between mI=+1/2 and mI=-1/2 on the nanosecond time scale. This approach provides a fast way of controlling nuclear spin qubits and also enables the design of switchable spin-based quantum gates by addressing only the electron spin.
©2010 The American Physical Society
-proton nuclear spin, I =1/2, coupled to the stable radical ·CH(COOH)2, S =1/2, in a -irradiated malonic acid single crystal using only microwave pulses. We show that, depending on the state of the electron spin (mS=±1/2), the nuclear spin can be locked in a desired state or oscillate between mI=+1/2 and mI=-1/2 on the nanosecond time scale. This approach provides a fast way of controlling nuclear spin qubits and also enables the design of switchable spin-based quantum gates by addressing only the electron spin.
©2010 The American Physical Society
| History: | Received 13 October 2009; published 24 February 2010 |
| Permalink: |
http://link.aps.org/abstract/PRA/v81/e020305 |
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