Next Article in Journal
Entropy? Honest!
Next Article in Special Issue
SU(2) Yang–Mills Theory: Waves, Particles, and Quantum Thermodynamics
Previous Article in Journal
Multiple Description Coding Based on Optimized Redundancy Removal for 3D Depth Map
Previous Article in Special Issue
Unified Quantum Model of Work Generation in Thermoelectric Generators, Solar and Fuel Cells
Article Menu

Export Article

Open AccessArticle
Entropy 2016, 18(7), 244; doi:10.3390/e18070244

Multiatom Quantum Coherences in Micromasers as Fuel for Thermal and Nonthermal Machines

1
Physics Department, University of Michigan, 450 Church St., Ann Arbor, MI 48109-1040, USA
2
Department of Chemical Physics, Weizmann Institute of Science, Rehovot 7610001, Israel
3
Department of Physics, Koç University, Sarıyer 34450, Istanbul, Turkey
*
Author to whom correspondence should be addressed.
Academic Editor: Ronnie Kosloff
Received: 26 May 2016 / Revised: 22 June 2016 / Accepted: 23 June 2016 / Published: 29 June 2016
(This article belongs to the Special Issue Quantum Thermodynamics)
View Full-Text   |   Download PDF [1147 KB, uploaded 29 June 2016]   |  

Abstract

In this paper, we address the question: To what extent is the quantum state preparation of multiatom clusters (before they are injected into the microwave cavity) instrumental for determining not only the kind of machine we may operate, but also the quantitative bounds of its performance? Figuratively speaking, if the multiatom cluster is the “crude oil”, the question is: Which preparation of the cluster is the refining process that can deliver a “gasoline” with a “specific octane”? We classify coherences or quantum correlations among the atoms according to their ability to serve as: (i) fuel for nonthermal machines corresponding to atomic states whose coherences displace or squeeze the cavity field, as well as cause its heating; and (ii) fuel that is purely “combustible”, i.e., corresponds to atomic states that only allow for heat and entropy exchange with the field and can energize a proper heat engine. We identify highly promising multiatom states for each kind of fuel and propose viable experimental schemes for their implementation. View Full-Text
Keywords: quantum thermodynamics; quantum coherence; micromaser quantum thermodynamics; quantum coherence; micromaser
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Dağ, C.B.; Niedenzu, W.; Müstecaplıoğlu, Ö.E.; Kurizki, G. Multiatom Quantum Coherences in Micromasers as Fuel for Thermal and Nonthermal Machines. Entropy 2016, 18, 244.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Entropy EISSN 1099-4300 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top