Macroscopic quantum states: Measures, fragility, and implementations

2017/06/30 by Florian Fröwis, Pavel Sekatski, Wolfgang Dür +2 · 4 citations
Computer Science · Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #Fragility #Physics #Quantum #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum mechanics #Quantum state #Scale (ratio) #Statistical physics #Theoretical physics #quant-ph

paper · pdf · doi:10.1103/revmodphys.90.025004

published as Rev. Mod. Phys. 90, 025004 (2018) · Review paper, 58 pages and 23 figures. v2: small amendments

openalex created_date 2017/06/30 · openalex publication_date 2018/05/31 · arxiv created 2018/06/19 · arxiv updated 2018/06/20 · openalex updated_date 2026/08/06

Abstract

Large-scale quantum effects have always played an important role in the foundations of quantum theory. With recent experimental progress and the aspiration for quantum enhanced applications, the interest in macroscopic quantum effects has been reinforced. In this review, measures aiming to quantify various aspects of macroscopic quantumness are critically analyzed and discussed. Recent results on the difficulties and prospects to create, maintain, and detect macroscopic quantum states are surveyed. The role of macroscopic quantum states in foundational questions as well as practical applications is outlined. Finally, past and ongoing experimental advances aiming to generate and observe macroscopic quantum states are presented.

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Cited by

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• Schrödinger cat states of a nuclear spin qudit in silicon
• Open quantum dynamics induced by light scalar fields
• Leggett-Garg tests of macrorealism for dynamical cat states evolving in a nonlinear medium