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Testing Whether Gravity Acts as a Quantum Entity When Measured
Farhan Hanif, Debarshi Das, Jonathan Halliwell +4
A defining signature of classical systems is "in principle measurability" without disturbance: a feature manifestly violated by quantum systems. We describe a multi-interferometer…
Spatial Qubit Entanglement Witness for Quantum Natured Gravity
Bin Yi, Urbasi Sinha, Dipankar Home +2
Evidencing the quantum nature of gravity through the entanglement of two masses has recently been proposed. Proposals using qubits to witness this entanglement can afford to bring…
Gravitational Optomechanics: Photon-Matter Entanglement via Graviton Exchange
Dripto Biswas, Sougato Bose, Anupam Mazumdar +1
The deflection of light in the gravitational field of the Sun is one of the most fundamental consequences for general relativity as well as one of its classical tests first perform…
Entanglement Witness for the Weak Equivalence Principle
Sougato Bose, Anupam Mazumdar, Martine Schut +1
The Einstein equivalence principle is based on the equality of gravitational mass and inertial mass, which has led to the universality of a free-fall concept. The principle has bee…
Mechanism for the quantum natured gravitons to entangle masses
Sougato Bose, Anupam Mazumdar, Martine Schut +1
This paper points out the importance of the quantum nature of the gravitational interaction with matter in a linearized theory of quantum gravity induced entanglement of masses (QG…
Loss of coherence and coherence protection from a graviton bath
Marko Toroš, Anupam Mazumdar, Sougato Bose
We consider a quantum harmonic oscillator coupled with a graviton bath and discuss the loss of coherence in the matter sector due to the matter-graviton vertex interaction. Working…
Relative Acceleration Noise Mitigation for Nanocrystal Matter-wave Interferometry: Application to Entangling Masses via Quantum Gravity
Marko Toroš, Thomas W. van de Kamp, Ryan J. Marshman +3
Matter wave interferometers with large momentum transfers, irrespective of specific implementations, will face a universal dephasing due to relative accelerations between the inter…
Mesoscopic Interference for Metric and Curvature (MIMAC) & Gravitational Wave Detection
Ryan J. Marshman, Anupam Mazumdar, Gavin W. Morley +3
A compact detector for space-time metric and curvature is highly desirable. Here we show that quantum spatial superpositions of mesoscopic objects, of the type which would in princ…
A quantum holographic principle from decoherence
Sougato Bose, Anupam Mazumdar
We present a fully quantum version of the holographic principle in terms of quantum systems, subsystems, and their interactions. We use the concept of environment induced decoheren…