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author:

Chen, Ye-Hong (Chen, Ye-Hong.) [1] | Miranowicz, Adam (Miranowicz, Adam.) [2] | Chen, Xi (Chen, Xi.) [3] | Xia, Yan (Xia, Yan.) [4] | Nori, Franco (Nori, Franco.) [5]

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EI

Abstract:

We propose a general approach to implement ultrafast nonadiabatic geometric single- and two-qubit gates by employing counter-rotating effects. This protocol is compatible with most optimal control methods used in previous rotating-wave approximation (RWA) protocols; thus, it is as robust as (or even more robust than) the RWA protocols. Using counter-rotating effects allows us to apply strong drives. Therefore, we can improve the gate speed by 5-10 times compared to the RWA counterpart for implementing high-fidelity (≥99.99%) gates. Such an ultrafast evolution (nanoseconds, even picoseconds) significantly reduces the influence of decoherence (e.g., the qubit dissipation and dephasing). Moreover, because the counter-rotating effects no longer induce a gate infidelity (in both the weak and strong driving regimes), we can achieve a higher fidelity compared to the RWA protocols. Therefore, in the presence of decoherence, one can implement ultrafast geometric quantum gates with ≥99% fidelities. © 2022 American Physical Society.

Keyword:

Geometry Logic gates Quantum theory Qubits

Community:

  • [ 1 ] [Chen, Ye-Hong]Theoretical Quantum Physics Laboratory, Cluster for Pioneering Research, RIKEN, Wako-shi, Saitama; 351-0198, Japan
  • [ 2 ] [Chen, Ye-Hong]Quantum Information Physics Theory Research Team, Center for Quantum Computing, RIKEN, Wako-shi, Saitama; 351-0198, Japan
  • [ 3 ] [Chen, Ye-Hong]Fujian Key Laboratory of Quantum Information and Quantum Optics, Fuzhou University, Fuzhou; 350116, China
  • [ 4 ] [Chen, Ye-Hong]Department of Physics, Fuzhou University, Fuzhou; 350116, China
  • [ 5 ] [Miranowicz, Adam]Theoretical Quantum Physics Laboratory, Cluster for Pioneering Research, RIKEN, Wako-shi, Saitama; 351-0198, Japan
  • [ 6 ] [Miranowicz, Adam]Institute of Spintronics and Quantum Information, Faculty of Physics, Adam Mickiewicz University, Pozna; 61-614, Poland
  • [ 7 ] [Chen, Xi]Department of Physical Chemistry, University of the Basque Country UPV/EHU, Apartado 644, Bilbao; 48080, Spain
  • [ 8 ] [Chen, Xi]EHU Quantum Center, University of the Basque Country UPV/EHU, Barrio Sarriena, s/n, Leioa; 48940, Spain
  • [ 9 ] [Xia, Yan]Fujian Key Laboratory of Quantum Information and Quantum Optics, Fuzhou University, Fuzhou; 350116, China
  • [ 10 ] [Xia, Yan]Department of Physics, Fuzhou University, Fuzhou; 350116, China
  • [ 11 ] [Nori, Franco]Theoretical Quantum Physics Laboratory, Cluster for Pioneering Research, RIKEN, Wako-shi, Saitama; 351-0198, Japan
  • [ 12 ] [Nori, Franco]Quantum Information Physics Theory Research Team, Center for Quantum Computing, RIKEN, Wako-shi, Saitama; 351-0198, Japan
  • [ 13 ] [Nori, Franco]Department of Physics, University of Michigan, Ann Arbor; MI; 48109-1040, United States

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Source :

Physical Review Applied

Year: 2022

Issue: 6

Volume: 18

4 . 6

JCR@2022

3 . 8 0 0

JCR@2023

ESI HC Threshold:55

JCR Journal Grade:2

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 12

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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