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Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
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Analogue gravity on a superconducting chip.

Miles P Blencowe1, Hui Wang1

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Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
|July 21, 2020
PubMed
Summary

Analogues of Hawking evaporating black holes and the Unruh effect can be simulated using superconducting microwave circuits. These circuits utilize Josephson tunnel junctions and acoustic resonators for novel analogue gravity experiments.

Keywords:
Hawking effectoscillatory Unruh effectsuperconducting circuits

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Area of Science:

  • Quantum Gravity and Analogue Gravity Experiments
  • Superconducting Circuit Quantum Electrodynamics

Background:

  • The theoretical concepts of Hawking radiation and the Unruh effect are fundamental in black hole physics and quantum field theory in curved spacetime.
  • Direct experimental verification of these effects is challenging due to extreme conditions required.

Purpose of the Study:

  • To propose and describe a novel experimental setup for realizing analogues of black hole evaporation and the Unruh effect.
  • To explore the potential of superconducting microwave circuits for next-generation analogue gravity experiments.

Main Methods:

  • Utilizing superconducting microwave circuits engineered with Josephson tunnel junctions.
  • Incorporating film bulk acoustic resonator elements within the circuit design.
  • Simulating the behavior of an oscillatory, accelerating photodetector in a vacuum analogue.

Main Results:

  • The proposed circuit design provides a viable platform for creating analogues of Hawking evaporating black holes.
  • The setup allows for the simulation of the Unruh effect in a controllable laboratory environment.
  • Demonstrates the feasibility of using circuit quantum electrodynamics for analogue gravity.

Conclusions:

  • Superconducting circuits offer a promising avenue for experimentally probing fundamental physics concepts like Hawking radiation and the Unruh effect.
  • This work contributes to the development of advanced analogue gravity simulators.
  • Highlights the potential of circuit-based quantum systems for exploring high-energy physics phenomena.