Bulletin of the American Physical Society
APS March Meeting 2018
Monday–Friday, March 5–9, 2018; Los Angeles, California
Session F39: Microwave Photonics with Superconducting Circuits II
11:15 AM–2:03 PM,
Tuesday, March 6, 2018
LACC Room: 501B
Sponsoring Unit: DQI
Chair: Michael Hatridge, Univ of Pittsburgh
Abstract: F39.00008 : Deterministic Generation of a Traveling Cat State with a Kerr Parametric Oscillator
1:27 PM–1:39 PM
(Univ. of Tokyo)
Quantum computation with a network of Kerr parametric oscillators, or KPOs for short, has been proposed for the standard gate model [1,2] and adiabatic optimization . Such a new machine is expected to be implemented with superconducting circuits [4,5]. A remarkable feature of a KPO is the ability to generate a Schödinger cat state deterministically via quantum adiabatic evolution. However, the cat state inside the KPO seems difficult to observe because of the large Kerr effect. Here we theoretically propose a method to release the cat state from the KPO without a tunable output coupler. As a result, a traveling cat state can be generated deterministically with a KPO and observed, e.g., by homodyne detection. We will also propose a superconducting-circuit implementation of the traveling-cat generator.
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H. Goto, Sci. Rep. 6, 21686 (2016).
 S. E. Nigg, N. Lörch and R. P. Tiwari, Sci. Adv. 3, e1602273 (2017).
 S. Puri, C. K. Andersen, A. L. Grimsmo and A. Blais, Nat. Commun. 8, 15785 (2017).
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