Radiation by an Unruh-DeWitt detector in oscillatory motion

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Quantum radiated energy flux emitted by an Unruh-DeWitt (UD) detector, with the internal harmonic oscillator coupled to a massless scalar field, in linear oscillatory motion in (3+1) dimensional Minkowski space is studied by numerical methods. Our results show that quantum interference can indeed suppress the signal of the Unruh effect if the averaged proper acceleration is sufficiently low, but not in the regime with high averaged acceleration and short oscillatory cycle. While the averaged radiated energy flux over a cycle is always positive as guaranteed by the quantum inequalities, an observer at a fixed angle may see short periods of negative radiated energy flux in each cycle of motion, which indicates that the radiation is squeezed. This reveals another resemblance between the detector theory and the moving-mirror model.

Original languageEnglish
Title of host publication14th Marcel Grossman Meeting On Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories, Proceedings
EditorsMassimo Bianchi, Robert T Jantzen, Remo Ruffini, Remo Ruffini
PublisherWorld Scientific Publishing Co. Pte Ltd
Pages4095-4102
Number of pages8
ISBN (Electronic)9789813226593
DOIs
Publication statusPublished - 2018
Event14th Marcel Grossman Meeting On Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories - Rome, Italy
Duration: 2015 Jul 122015 Jul 18

Publication series

Name14th Marcel Grossman Meeting On Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories, Proceedings

Other

Other14th Marcel Grossman Meeting On Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories
CountryItaly
CityRome
Period15-07-1215-07-18

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Astronomy and Astrophysics

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  • Cite this

    Lin, S. Y. (2018). Radiation by an Unruh-DeWitt detector in oscillatory motion. In M. Bianchi, R. T. Jantzen, R. Ruffini, & R. Ruffini (Eds.), 14th Marcel Grossman Meeting On Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories, Proceedings (pp. 4095-4102). (14th Marcel Grossman Meeting On Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories, Proceedings). World Scientific Publishing Co. Pte Ltd. https://doi.org/10.1142/9789813226609_0547