qmts

We work in quantum mechanics and its foundations: the measurement problem, the meaning of the wave function, entaglement and nonlocality, the quantum-to-classical transition, the relation between quantum theory and relativity/gravity.

Latest News

Anirudh Gundhi publishes on PRL

July 10, 2025

Our paper "Measuring Decoherence Due to Quantum Vacuum Fluctuations" published on Physical Review Letters. Vacuum fluctuations of the electromagnetic field vacuum comprise a fundamentally unavoidable environment for a charged particle. Previous works have investigated whether vacuum fluctuations can lead to observable decoherence, when treated as an environment of a charged particle…

Angelo Bassi Discusses the Foundations of Quantum Mechanics on Sky TG24’s “Science, please” Podcast

February 18, 2025

In a recent episode of Science, please, the Sky TG24 podcast that explores major scientific questions, Angelo Bassi was invited to discuss the foundations of quantum mechanics and the challenges it presents. The conversation focused on the measurement problem, which questions how and when quantum systems transition from a superposition of states to a definite outcome.…

Exploring the Accuracy of Interferometric Quantum Measurements under Conservation Laws, our research in PRL

February 3, 2025

We study a modified version (arguably within reach of present technology) of a typical interferometric measurement scheme so that energy conservation enters in a non-trivial way. In such a case, the measurement accuracy is limited by fundamental bounds due to energy conservation. We characterize the measurement error in relation to…

Angelo Bassi publishes on PRL

September 11, 2024

Our paper "X-Ray Emission from Atomic Systems Can Distinguish between Prevailing Dynamical Wave-Function Collapse Models" published on Physical Review Letters. The work proposes a novel method to test collapse models using X-ray emissions from atomic systems. These models challenge the standard quantum theory by offering explanations for why quantum superpositions…

Latest ArXiv preprints

Enhancement of the effects due to the Schrödinger-Newton equation
by Davide Giordano Ario Altamura on July 3, 2025 at 5:53 pm
The Schrödinger-Newton (SN) equation introduces a nonlinear self-gravitational term to the standard Schrödinger equation, offering a paradigmatic model for semiclassical gravity. However, the small […]
Theoretical Limits of Protocols for Distinguishing Different Unravelings
by J. L. Gaona-Reyes on February 26, 2025 at 4:24 pm
The evolution of an open quantum system is often described by a master equation, which governs the dynamics of the statistical operator. The dynamics of a master equation can be expressed as an […]
Probing the Quantum Nature of Gravity through Classical Diffusion
by Oliviero Angeli on January 22, 2025 at 5:22 pm
The question of whether gravity is fundamentally quantum remains one of the most profound open problems in modern physics. A recently explored approach consists in testing gravity's ability to […]
On the effectiveness of the collapse in the Diósi-Penrose model
by Laria Figurato on June 26, 2024 at 4:57 pm
The possibility that gravity plays a role in the collapse of the quantum wave function has been considered in the literature, and it is of relevance not only because it would provide a solution to […]
Spontaneous collapse models lead to the emergence of classicality of the Universe
by José Luis Gaona-Reyes on January 16, 2024 at 10:46 am
Assuming that Quantum Mechanics is universal and that it can be applied over all scales, then the Universe is allowed to be in a quantum superposition of states, where each of them can correspond to […]

QmTs