Superconducting electro-mechanics to test Diósi-Penrose effects of general relativity in massive superpositions

2021/03/31 by Mario F. Gely, Gary A. Steele · 1 citation
Computer Science · Physics and Astronomy · #Classical mechanics #Classical physics #General relativity #Mechanical and Optical Resonators #Physics #Quantum #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum mechanics #Quantum superposition #Superconductivity #Superposition principle #Theoretical physics #Theory of relativity #cond-mat.mes-hall #quant-ph

paper · pdf · doi:10.1116/5.0050988

published as AVS Quantum Sci. 3, 035601 (2021) · arXiv admin note: text overlap with arXiv:2004.09153

openalex created_date 2021/03/29 · openalex publication_date 2021/09/01 · arxiv created 2022/03/21 · arxiv updated 2022/03/23 · openalex updated_date 2026/08/05

Abstract

Attempting to reconcile general relativity with quantum mechanics is one of the great undertakings of contemporary physics. Here we present how the incompatibility between the two theories arises in the simple thought experiment of preparing a heavy object in a quantum superposition. Following Penrose's analysis of the problem, we determine the requirements on physical parameters to perform experiments where both theories potentially interplay. We use these requirements to compare different systems, focusing on mechanical oscillators which can be coupled to superconducting circuits.

Citations

• Measuring and controlling radio-frequency quanta with superconducting circuits
• A clock containing a massive object in a superposition of states; what makes Penrosian wavefunction collapse tick?
• Sideband cooling of micromechanical motion to the quantum ground state
• A phononic bandgap shield for high-Q membrane microresonators
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• On Gravity's role in Quantum State Reduction
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• Cavity Optomechanics

Cited by

• Ground State Cooling of an Ultracoherent Electromechanical System