Solid State Quantum Information

Quantum control of the flux qubit coupled to microwave photon system

speaker: Kouichi Semba (NTT Basic Research Laboratories, NTT Corporation)

abstract: If we could achieve full control of the entangled states of a quantum bit (qubit) interacting with a single photon in a single-mode resonator, then we could obtain a coherently coupled multi-qubit state, which is indispensable for quantum computation. In this talk, I will mention some of our recent results1-5, especially the time-domain control of the entanglement of a superconducting flux qubit with a few microwave photon system5.

We acknowledge support by JSPS-KAKENHI(18201018) and MEXT-KAKENHI(18001002).

1 T. Kutsuzawa, et al., Appl. Phys. Lett. 87, 073501 (2005) 2 S. Saito, et al., Phys. Rev. Lett. 96, 107001 (2006) 3 K. Kakuyanagi, et al., Phys. Rev. Lett. 98, 047004 (2007) 4 J. Johansson, et al., Phys. Rev. Lett. 96, 127006 (2006) 5 K. Kakuyanagi, et al., (2008) in preparation

timetable:
Wed 3 Dec, 15:00 - 15:30, Sala Stemmi
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