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Computational sciences Conferences Open KIAS School on Quantum Information Science 2014
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Quantum Vacuum Amplification
SPEAKER  |  Paul Nation
INSTITUTE  |  고려대학교
DATE  |  July 8(Tue), 2014
TIME  |  09:30
PLACE  |  고등과학원 국제회의실 (1호관 1층)
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ABSTRACT  |  Owing to the Heisenberg uncertainty principle, the vacuum of quantum mechanics is a volatile sea of ephemeral virtual particles that are the origin of some of the most important physical processes in the universe. One such process, is the amplification of quantum vacuum fluctuations into observable photons. This mechanism lies at the heart of the Unruh effect, Hawking radiation from a black hole, and the dynamical Casimir effect. Although these mechanisms seem quite exotic, their underlying physics is so easy even a child can understand. Here we will show that all quantum vacuum amplification mechanisms can be traced back to the same physics used to amplify a playground swing; an effect known as parametric amplification. We will introduce the Unruh effect, Hawking radiation, and the dynamical Casimir effect, and highlight their connection to the quantum parametric amplifier. In addition, we demonstrate how these effects, or their analogues, can be observed using superconducting circuit devices. The unity underlying these mechanisms provides for experimental realizations of otherwise unobservable effects, and gives insight into currently unanswered theoretical questions such as the black hole information loss problem.
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