Unitary collapse of Schrödinger's cat state

被引：0

作者：

Stránský, Pavel ^{[1
]}

Cejnar, Pavel ^{[1
]}

Filip, Radim ^{[2
]}

机构：

[1] Institute of Particle and Nuclear Physics, Faculty of Mathematics and Physics, Charles University, V Holešovičkách 2, Prague,18000, Czech Republic

[2] Department of Optics, Faculty of Science, Palacký University, 17 Listopadu 12, Olomouc,77146, Czech Republic

来源：

Physical Review A | 2024年 / 110卷 / 03期

关键词：

Oscillators (mechanical) - Positive ions - Quantum computers - Quantum electronics - Quantum optics;

D O I：

10.1103/PhysRevA.110.L030202

中图分类号：

学科分类号：

摘要：

We analyze the dynamics of the Rabi model describing interactions of a qubit with a single soft-mode oscillator. We show that the model with a slightly violated parity generates symmetric Schrödinger cat states of the oscillator, which suddenly perish in a spontaneous unitary process similar to the measurement-induced wave-function collapse. The effect is sufficiently robust to be tested experimentally, e.g., with trapped ions, macroscopic mechanical oscillators, or superconducting circuits. © 2024 American Physical Society.

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