What's New

Prof. Bassi interviewed by Scientific American

Tuesday, July 3, 2018

The TEQ teams work to establish the large-scale limit of quantum mechanics trying to answer questions that are so far unaddressed: why we have no evidence of non-classical behavior in the macroscopic world? How is quantumness lost as we abandon the microscopic domain? To find answers, TEQ partners are undergoing tests of quantum effects for systems whose mass is orders of magnitude larger than that employed in the most successful quantum experiments to date.
The PI of the TEQ project, Prof. Angelo Bassi, has been recently interviewed for the cover article of the July issue of Scientific American, the prestigious American popular science magazines, in which he talks about the efforts to understand the true nature of the matter in between the micro and the macro. “We know the microworld is quantum, and we know in one way or another, we are classical—whatever that means,” says Angelo Bassi […] “We are ignorant about the true nature of matter in between the micro and the macro.”
The article explains how the microscopic and macroscopic worlds do not blend seamlessly: the probabilistic nature of quantum mechanics reigns over the first, whereas the second observes more logical “classical” rules. World top researchers in the field have a say in the piece and share their findings and opinions. “Some people will tell you quantum mechanics has taught us that the world is strange, so we have to accept it,” Bassi says. “I would say no. If something is strange, then we have to understand better.”
Link to the article: https://www.scientificamerican.com/article/how-does-the-quantum-world-cross-over/

General Galilei Covariant Gaussian Maps

Friday, September 8, 2017

A new paper by G. Gasbarri, M. Toros and A. Bassi has been published in Physics Review Letter. The authors analyze Galilean symmetries in non-Markovian Gaussian Completely positive maps.

They provide the specific mathematical structure that Completely Positive Gaussian Maps should have in order to satisfy Galilean symmetries.

Next they apply the results to discussing measures of macroscopicity based on classicalization maps, specifically addressing dissipation, Galilean covariance and non-Markovianity.
In the Letter they further propose a possible generalization of macroscopicity measure first defined by Nimmrichter and Hornberger.

Improved noninterferometric test of collapse models using ultracold cantilevers

Friday, September 8, 2017

A new paper by A. Vinante, R. Mezzena, P. Falferi, M. Carlesso, and A. Bassi, to appear in Physical Review Letters, describes an improved experiment aiming at probing collapse models. The tiny oscillations of a very cold microcantilever have been accurately measured, leading to new stringent limits on the collapse parameters. Notably, the experiment shows evidence of a residual noise, in principle compatible with collapse models’ predictions.

ScienceNews announced the result: Minuscule jitters may hint at quantum collapse mechanism.

Kick-off meeting of the COST Action on Quantum Physics

Monday, April 11, 2011

The Management Committee of the newly approved COST Action MP1006 "Fundamental Problems in Quantum Physics" meets in Brussels, for the kick-off meeting. During the meeting. A. Bassi has been elected Chair of the Action.

School of Quantum Mechanics at ICTP

Wednesday, February 16, 2011

Article on the local newspaper "Il Piccolo" (in Italian). The local media repotred about the success of the School "New Trends in Quantum Dynamics and Quantum Entanglement" held in Trieste, which was attended by over 100 students.