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20122026
most citedGravitationally-induced entanglement between two massive particles is sufficient evidence of quantum effects in gravity

757 citations · 1.4k across the 57 of their papers we have counts for

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Showing 2025Show all

10 papers · 1 filter

quant-ph2025

Classical gravity cannot mediate entanglement

Chiara Marletto, Jonathan Oppenheim, Vlatko Vedral +1

In Nature, 646, 813 (2025), Aziz and Howl claim that classical (unquantised) gravity produces entanglement. We show that their model does not produce entanglement. Even if the mode…

quant-ph2025

Classical Gravity Cannot Mediate Entanglement by Local Means

Chiara Marletto, Vlatko Vedral

We rebut a recent paper that claims that classical gravity can entangle two massive superpositions by local means. We refute the misconceptions appearing in this paper and confirm…

quant-ph2025★ 1 cited

A Spin-Based Pathway to Testing the Quantum Nature of Gravity

Sougato Bose, Anupam Mazumdar, Roger Penrose +52

A key open problem in physics is the correct way to combine gravity (described by general relativity) with everything else (described by quantum mechanics). This problem suggests t…

quant-ph2025

Can entanglement be mediated by a Koopmanian system?

Chiara Marletto, Vlatko Vedral

We present a method for coupling a Koopmanian classical system to two quantum bits to mediate an interaction between them. We then prove that the resulting dynamics can never lead…

quant-ph2025

Bose-Marletto-Vedral experiment without observable spacetime superpositions

Nicetu Tibau Vidal, Chiara Marletto, Vlatko Vedral +1

Reconciling quantum mechanics and general relativity remains one of the most profound challenges in modern physics. The BMV (Bose-Marletto-Vedral) experiment can assess the quantum…

quant-ph2025

Temporal Entanglement and Witnesses of Non-Classicality

Giuseppe Di Pietra, Gaurav Bhole, James Eaton +4

The universality of quantum theory has been questioned ever since it was proposed. Key to this long-unsolved question is to test whether a given physical system has non-classical f…

quant-ph2025

Interference in complex canonical variables is not quantum

Chiara Marletto, Vlatko Vedral

We formally represent the quantum interference of a single qubit embodied by a photon in the Mach-Zehnder interferometer using the classical Hamiltonian framework but with complex…

quant-ph2025

Constructor theory of time

David Deutsch, Chiara Marletto

Constructor theory asserts that the laws of physics are expressible as specifications of which transformations of physical systems can or cannot be brought about with unbounded acc…

quant-ph2025

Collapse-based models for gravity do not violate the entanglement-based witness of non-classicality

Tianfeng Feng, Vlatko Vedral, Chiara Marletto

It is known that an entanglement-based witness of non-classicality can be applied to testing quantum effects in gravity. Specifically, if a system can create entanglement between t…

quant-ph2025

Observation of quantum free fall and the consistency with the equivalence principle

Or Dobkowski, Barak Trok, Peter Skakunenko +9

The unification of quantum theory and the general theory of relativity - describing gravity, is one of the most important challenges in science. Einstein's general theory of relati…