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

17 hours ago

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

Towards relativistic generalization of collapse models
by Anirudh Gundhi on July 9, 2025 at 3:37 pm
Spontaneous collapse models provide a possible, testable solution to the quantum measurement problem. While experiments are providing increasingly stronger bounds on their parameters, a full-fledged […]
Enhancement of the effects due to the Schrödinger-Newton equation
by Davide Giordano Ario Altamura on July 3, 2025 at 5:53 pm
The Schr\"odinger-Newton (SN) equation introduces a nonlinear self-gravitational term to the standard Schr\"odinger equation, offering a paradigmatic model for semiclassical gravity. […]
Fast and Error-Correctable Quantum RAM
by Francesco Cesa on March 24, 2025 at 9:51 pm
Quantum devices can process data in a fundamentally different way than classical computers. To leverage this potential, many algorithms require the aid of a quantum Random Access Memory (QRAM), i.e. […]
The Unequal Costs of Pollution: Carbon Tax, Inequality, and Redistribution
by Cristiano Cantore on February 28, 2025 at 7:38 pm
This paper studies how household heterogeneity affects the level and cyclical behavior of the optimal carbon tax in a real economy. We demonstrate that an equity-efficiency trade-off arises due to […]
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 […]

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