14 papers
Tests of constructor theory
Chiara Marletto, David Deutsch, Vlatko Vedral
Constructor theory is a proposal to extend quantum information theory beyond both quantum theory and computation, to cover more general machines than programmable computers -- call…
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…
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…
Role of non-classicality in mediated spatial quantum correlations
Salvatore Raia, Giuseppe Di Pietra, Chiara Marletto
The study of non-classicality is essential to understand the quantum-to-classical transition in physical systems. Recently, a witness of non-classicality has been proposed, linking…
Conservation Laws and the Non-Classicality of Gravity
Tianfeng Feng, Chiara Marletto, Vlatko Vedral
We analyze the interaction between quantum matter and classical objects through a general effective channel for hybrid dynamics, subject to the fundamental constraint that no quant…
Repulsive Gravitational Force as a Witness of the Quantum Nature of Gravity
Pablo L. Saldanha, Chiara Marletto, Vlatko Vedral
We show that a single spatially superposed 'source' mass acting on a 'probe' matter wavepacket can reveal the quantum nature of the gravitational field. For this we use a specific…