Quantum simulation of Unruh-DeWitt detectors with nonlinear optics
| Autor: | Kevin J. Resch, Eugene Adjei, Agata M. Brańczyk |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Physics
Quantum Physics Physics::Instrumentation and Detectors Detector FOS: Physical sciences Quantum simulator Nonlinear optics General Relativity and Quantum Cosmology (gr-qc) 01 natural sciences General Relativity and Quantum Cosmology 010305 fluids & plasmas 3. Good health Acceleration Nonlinear system Unruh effect Quantum electrodynamics 0103 physical sciences Physics::Accelerator Physics High Energy Physics::Experiment Quantum Physics (quant-ph) 010306 general physics Scalar field Energy (signal processing) |
| Zdroj: | Physical Review A. 102 |
| ISSN: | 2469-9934 2469-9926 |
| DOI: | 10.1103/physreva.102.033506 |
| Popis: | We propose a method for simulating an Unruh-DeWitt detector, coupled to a 1+1-dimensional massless scalar field, with a suitably-engineered $\chi^{(2)}$ nonlinear interaction. In this simulation, the parameter playing the role of the detector acceleration is played by the relative inverse-group-velocity gradient inside the nonlinear material. We identify experimental parameters that tune the detector energy gap, acceleration, and switching function. This system can simulate time-dependent acceleration, time-dependent detector energy gaps, and non-vacuum initial detector-field states. Furthermore, for very short materials, the system can simulate the weak anti-Unruh effect, in which the response of the detector decreases with acceleration. While some Unruh-related phenomena have been investigated in nonlinear optics, this is the first proposal for simulating an Unruh-DeWitt detector in these systems. Comment: 5 pages main text (10 pages total), 2 figures |
| Databáze: | OpenAIRE |
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