Abstract: We have developed an efficient quantum control scheme that allows for arbitrary operations on a cavity mode using strongly dispersive qubit-cavity interaction and time-dependent drives [1,2]. In addition, we have discovered a new class of bosonic quantum error correcting codes, which can correct both cavity loss and dephasing errors [3]. Our control scheme can readily be implemented using circuit QED systems, and extended for quantum error correction to protect information encoded in bosonic codes [4]. Moreover, engineered dissipation can also implement holonomic quantum computation using superconducting circuits [5,6].
[1] Krastanov, et al., PRA 92, 040303 (2015)
[2] Heeres, et al., PRL 115, 137002 (2015)
[3] Michael, et al., PRX 6, 031006 (2016)
[4] Ofek, et al., Nature 536, 441 (2016)
[5] Albert, et al., PRL 116, 140502 (2016)
[6] Albert, et al., arXiv:1512.08079

Lunch is provided at 11:30 a.m. in the Bowen Hall Atrium prior to the seminar.