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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] (Scholars:夏岩) | Nori, Franco (Nori, Franco.) [5]

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EI SCIE

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 meth-ods 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. There-fore, 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.

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Community:

  • [ 1 ] [Chen, Ye-Hong]RIKEN, Theoret Quantum Phys Lab, Cluster Pioneering Res, Wako, Saitama 3510198, Japan
  • [ 2 ] [Miranowicz, Adam]RIKEN, Theoret Quantum Phys Lab, Cluster Pioneering Res, Wako, Saitama 3510198, Japan
  • [ 3 ] [Nori, Franco]RIKEN, Theoret Quantum Phys Lab, Cluster Pioneering Res, Wako, Saitama 3510198, Japan
  • [ 4 ] [Chen, Ye-Hong]RIKEN, Ctr Quantum Comp, Quantum Informat Phys Theory Res Team, Wako, Saitama 3510198, Japan
  • [ 5 ] [Nori, Franco]RIKEN, Ctr Quantum Comp, Quantum Informat Phys Theory Res Team, Wako, Saitama 3510198, Japan
  • [ 6 ] [Chen, Ye-Hong]Fuzhou Univ, Fujian Key Lab Quantum Informat & Quantum Opt, Fuzhou 350116, Peoples R China
  • [ 7 ] [Xia, Yan]Fuzhou Univ, Fujian Key Lab Quantum Informat & Quantum Opt, Fuzhou 350116, Peoples R China
  • [ 8 ] [Chen, Ye-Hong]Fuzhou Univ, Dept Phys, Fuzhou 350116, Peoples R China
  • [ 9 ] [Xia, Yan]Fuzhou Univ, Dept Phys, Fuzhou 350116, Peoples R China
  • [ 10 ] [Miranowicz, Adam]Adam Mickiewicz Univ, Inst Spintron & Quantum Informat, Fac Phys, PL-61614 Poznan, Poland
  • [ 11 ] [Chen, Xi]Univ Basque Country UPV EHU, Dept Phys Chem, Apartado 644, Bilbao 48080, Spain
  • [ 12 ] [Chen, Xi]Univ Basque Country UPV EHU, EHU Quantum Ctr, Barrio Sarriena S-N, Leioa 48940, Spain
  • [ 13 ] [Nori, Franco]Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA

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Source :

PHYSICAL REVIEW APPLIED

ISSN: 2331-7019

Year: 2022

Issue: 6

Volume: 18

4 . 6

JCR@2022

3 . 8 0 0

JCR@2023

ESI Discipline: PHYSICS;

ESI HC Threshold:55

JCR Journal Grade:2

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count: 11

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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