Generation of entanglement from mechanical rotation

Abstract

Many phenomena and fundamental predictions, ranging from Hawking radiation to the early evolution of the Universe rely on the interplay between quantum mechanics and gravity or more generally, quantum mechanics in curved spacetimes. However, our understanding is hindered by the lack of experiments that actually allow us to probe quantum mechanics in curved spacetime in a repeatable and accessible way. Here we propose an experimental scheme for a photon that is prepared in a path superposition state across two rotating Sagnac interferometers that have different diameters and thus represent a superposition of two different spacetimes. We predict the generation of genuine entanglement even at low rotation frequencies and show how these effects could be observed even due to the Earth's rotation. These predictions provide an accessible platform in which to study the role of the underlying spacetime in the generation of entanglement.

15 pages, 3 figures; version accepted for publication in PRL

References in corpus (17)

• The Confrontation between General Relativity and Experiment
• Entanglement detection
• Gravity Probe B: Final Results of a Space Experiment to Test General Relativity
• A Spin Entanglement Witness for Quantum Gravity
• Gravitationally-induced entanglement between two massive particles is sufficient evidence of quantum effects in gravity
• Gravitational Decoherence
• Gravitationally Mediated Entanglement: Newtonian Field vs. Gravitons
• Underground test of gravity-related wave function collapse
• The Sagnac effect: 20 years of development in matter-wave interferometry
• General relativistic effects in quantum interference of photons
• Mechanism for the quantum natured gravitons to entangle masses
• An Experiment for Observing Quantum Gravity Phenomena using Twin Table-Top 3D Interferometers
• Reaching the sensitivity limit of a Sagnac gyroscope through linear regression analysis
• Relativistic frame-dragging and the Hong-Ou-Mandel dip $-$ a primitive to gravitational effects in multi-photon quantum-interference
• Quantum effects in rotating reference frames
• Measuring space-time curvature using maximally path-entangled quantum states
• Observer dependence of photon bunching: The influence of the relativistic redshift on Hong-Ou-Mandel interference

Cited by in corpus (13)

• Gravitational Optomechanics: Photon-Matter Entanglement via Graviton Exchange
• Hawking effect can generate physically inaccessible genuine tripartite nonlocality
• Experimental Observation of Earth's Rotation with Quantum Entanglement
• Noise level of a ring laser gyroscope in the femto-rad/s range
• Quantum Gravitational Sensor for Space Debris
• Controlling Photon Entanglement with Mechanical Rotation
• Vector bosons in the rotating frame of negative curvature wormholes
• Rotational influence on fermions within negative curvature wormholes
• Lamb shift as a witness for quantum noninertial effects
• Quantum Sensing from Gravity as Universal Dephasing Channel for Qubits
• Quantum interferometry in external gravitational fields
• Local Short-Time Acceleration induced Spectral Line Broadening and Possible Implications in Cosmology
• Generating quantum non-local entanglement with mechanical rotations