Bulletin of the American Physical Society
APS March Meeting 2020
Volume 65, Number 1
Monday–Friday, March 2–6, 2020; Denver, Colorado
Session U08: Superconducting Qubits: Gates, Couplers and Crosstalk II
2:30 PM–5:30 PM,
Thursday, March 5, 2020
Room: 104
Sponsoring
Unit:
DQI
Chair: Diego Ristè, BBN Technology - Massachusetts
Abstract: U08.00011 : Progress Towards Fast Dissipation-Induced Entanglement In Circuit-QED Using Parametric Interactions*
Presenter:
Tristan Brown
(Univ of Mass - Lowell & Raytheon BBN Technologies)
Authors:
Tristan Brown
(Univ of Mass - Lowell & Raytheon BBN Technologies)
Emery Doucet
(Univ of Mass - Lowell)
Florentin Reiter
(ETH Zurich)
Raymond W Simmonds
(National Institute of Standards and Technology Boulder)
Jose Aumentado
(National Institute of Standards and Technology Boulder)
Diego Ristè
(Raytheon BBN Technologies)
Leonardo M Ranzani
(Raytheon BBN Technologies)
Archana Kamal
(Univ of Mass - Lowell)
Parametric interactions enable powerful and novel functionalities with applications in many areas of quantum information science and engineering. Dissipative state stabilization, which seeks to achieve quantum state preparation without the standard gate-based methods, is an application that benefits from parametric interactions. Unlike resonantly-driven protocols, parametric schemes for state preparation circumvent the tradeoff between target state fidelity and state preparation time [1]. In this talk, I will discuss progress toward experimental realization of a parametrically-induced state stabilization scheme in circuit-QED architecture. Our device consists of two transmon qubits coupled to a common resonator with a flux-tunable SQUID coupler. Modulating the loop flux at multiple frequencies allows simultaneous Hamiltonian and dissipation engineering, with coupling strengths on the order of tens of MHz. The modular design paves the way towards natural extensions of such schemes to multipartite entanglement stabilization. [1] E. Doucet, F. Reiter, L. Ranzani, A. Kamal. arXiv:1810.03631 (2019).
*This work was supported by Department of Energy grant DE-SC0019461.
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