Stabilization of Finite-Energy Gottesman-Kitaev-Preskill States

被引：54
作者：
Royer, Baptiste [1 ]
Singh, Shraddha [2 ]
Girvin, S. M. [1 ]
机构：
[1] Yale Univ, Dept Phys, New Haven, CT 06520 USA
[2] Yale Univ, Dept Appl Phys, New Haven, CT 06520 USA
来源：
PHYSICAL REVIEW LETTERS | 2020年 / 125卷 / 26期
关键词：
QUANTUM ERROR-CORRECTION; QUBIT; OPERATION;
D O I：
10.1103/PhysRevLett.125.260509
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We introduce a new approach to Gottesman-Kitaev-Preskill (GKP) states that treats their finite-energy version in an exact manner. Based on this analysis, we develop new qubit-oscillator circuits that autonomously stabilize a GKP manifold, correcting errors without relying on qubit measurements. Finally, we show numerically that logical information encoded in GKP states is very robust against typical oscillator noise sources when stabilized by these new circuits.
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页数：6
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