Macroscopic quantum states: Measures, fragility, and implementations

Florian Fröwis, Pavel Sekatski, Wolfgang Dür, Nicolas Gisin, and Nicolas Sangouard
Rev. Mod. Phys. 90, 025004 – Published 31 May 2018

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.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
16 More
  • Received 19 June 2017

DOI:https://doi.org/10.1103/RevModPhys.90.025004

© 2018 American Physical Society

Physics Subject Headings (PhySH)

Quantum Information, Science & Technology

Authors & Affiliations

Florian Fröwis*

  • Group of Applied Physics, Université de Genève, CH-1211 Geneva, Switzerland

Pavel Sekatski*

  • Institut für Theoretische Physik, Universität Innsbruck, Technikerstraße 21a, A-6020 Innsbruck, Austria and Quantum Optics Theory Group, Department of Physics, University of Basel, CH-4056 Basel, Switzerland

Wolfgang Dür

  • Institut für Theoretische Physik, Universität Innsbruck, Technikerstraße 21a, A-6020 Innsbruck, Austria

Nicolas Gisin

  • Group of Applied Physics, Université de Genève, CH-1211 Geneva, Switzerland

Nicolas Sangouard

  • Quantum Optics Theory Group, Department of Physics, University of Basel, CH-4056 Basel, Switzerland

  • *These authors contributed equally.

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 90, Iss. 2 — April - June 2018

Reuse & Permissions
Access Options

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Reviews of Modern Physics

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×