Shortcuts to Adiabaticity for the Quantum Rabi Model: Efficient Generation of Giant Entangled Cat States via Parametric Amplification

Ye-Hong Chen, Wei Qin, Xin Wang, Adam Miranowicz, and Franco Nori
Phys. Rev. Lett. 126, 023602 – Published 13 January 2021
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Abstract

We propose a method for the fast generation of nonclassical ground states of the Rabi model in the ultrastrong and deep-strong coupling regimes via the shortcuts-to-adiabatic (STA) dynamics. The time-dependent quantum Rabi model is simulated by applying parametric amplification to the Jaynes-Cummings model. Using experimentally feasible parametric drive, this STA protocol can generate large-size Schrödinger cat states, through a process that is 10 times faster compared to adiabatic protocols. Such fast evolution increases the robustness of our protocol against dissipation. Our method enables one to freely design the parametric drive, so that the target state can be generated in the lab frame. A largely detuned light-matter coupling makes the protocol robust against imperfections of the operation times in experiments.

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  • Received 14 August 2020
  • Accepted 14 December 2020

DOI:https://doi.org/10.1103/PhysRevLett.126.023602

© 2021 American Physical Society

Physics Subject Headings (PhySH)

Quantum Information, Science & TechnologyAtomic, Molecular & Optical

Authors & Affiliations

Ye-Hong Chen1, Wei Qin1, Xin Wang1,2, Adam Miranowicz1,3, and Franco Nori1,4

  • 1Theoretical Quantum Physics Laboratory, RIKEN Cluster for Pioneering Research, Wako-shi, Saitama 351-0198, Japan
  • 2Institute of Quantum Optics and Quantum Information, School of Science, Xi’an Jiaotong University, Xi’an 710049, China
  • 3Faculty of Physics, Adam Mickiewicz University, 61-614 Poznań, Poland
  • 4Department of Physics, University of Michigan, Ann Arbor, Michigan 48109-1040, USA

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Issue

Vol. 126, Iss. 2 — 15 January 2021

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