Bulletin of the American Physical Society
APS March Meeting 2023
Volume 68, Number 3
Las Vegas, Nevada (March 5-10)
Virtual (March 20-22); Time Zone: Pacific Time
Session W67: Continuous-Variable Quantum Information: Hardware
3:00 PM–6:00 PM,
Thursday, March 9, 2023
Room: Room 412
Sponsoring
Unit:
DQI
Chair: Yuxin Wang, University of Chicago
Abstract: W67.00011 : Coherent cancellation of tunneling and quantum information protection: the Delta variant of the Kerr-cat qubit - Part 1/3*
5:24 PM–5:36 PM
Presenter:
Rodrigo G Cortinas
(Yale University)
Authors:
Rodrigo G Cortinas
(Yale University)
Jayameenakshi Venkatraman
(Yale University)
Nicholas E Frattini
(Yale University)
Xu Xiao
(Yale University)
Michel H Devoret
(Yale University)
Collaboration:
Qlab, Applied Physics Department, Yale University
In this two-part talk, we will present experimental results, measuring the passage through zero of the tunneling amplitude in the ground and excited state spectrum as a function of squeezing drive strength and frequency. This quantum error correction strategy leads to a 500x enhancement of well-flipping lifetimes while maintaining coherent control, and high-fidelity quantum non-demolition readout.
Part 1 addresses the cancellation ground state tunneling due to quantum interference effects.
*Work supported by: ARO, NSF, AFOSR and YINQE
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