VIP EXPERIMENT: NEW EXPERIMENTAL LIMIT ON PAULI EXCLUSION PRINCIPLE VIOLATION BY ELECTRONS

2009 ◽  
Vol 24 (02n03) ◽  
pp. 506-510
Author(s):  
◽  
D. PIETREANU ◽  
S. BARTALUCCI ◽  
S. BERTOLUCCI ◽  
M. BRAGADIREANU ◽  
...  
Keyword(s):  
Pauli Exclusion Principle ◽  
Experimental Results ◽  
Exclusion Principle ◽  
X Rays ◽  
Experimental Limit ◽  
Basic Principles ◽  
Forbidden Transition ◽  
Scientific Goal ◽  
Modern Physics ◽  
Future Plans

The VIP (Violation of the Pauli Exclusion Principle) experiment is investigating one of the basic principles of modern physics, searching for anomalous X-rays emitted by copper atoms in a conductor: any detection of these anomalous X-rays would mark a Pauli forbidden transition. VIP is currently taking data at the Gran Sasso underground laboratories, and its scientific goal is to improve by three-four orders of magnitude the previous limit on the probability of Pauli violating transitions, bringing it into the 10-29÷-30 region. The new experimental results, together with future plans, are presented.

THE VIP (VIOLATION OF THE PAULI EXCLUSION PRINCIPLE) EXPERIMENT

2007 ◽  
Vol 05 (01n02) ◽  
pp. 299-304 ◽  
Author(s):  
S. BARTALUCCI ◽  
S. BERTOLUCCI ◽  
M. BRAGADIREANU ◽  
M. CARGNELLI ◽  
M. CATITTI ◽  
...  
Keyword(s):  
Pauli Exclusion Principle ◽  
Exclusion Principle ◽  
X Ray ◽  
Preliminary Results ◽  
Forbidden Transition ◽  
Scientific Goal ◽  
Modern Physics ◽  
Lively Debate ◽  
Future Plans

The Pauli Exclusion Principle (PEP) represents one of the fundamental principles of the modern physics and our comprehension of the surrounding matter is based on it. Even if today there are no compelling reasons to doubt its validity, it still spurs a lively debate on its limits, as testified by the abundant contributions found in the literature and in topical conferences. We present a method of searching for possible small violations of PEP for electrons, through the search for "anomalous" X-ray transitions in copper atoms, produced by "fresh" electrons which can decay in a Pauli-forbidden transition to the 1s level, already occupied by two electrons. The VIP Experiment has the scientific goal to improve by four orders of magnitude the present limit on the probability of PEP violation for electrons, bringing it into the 10-30–10-31 region. Preliminary results, together with future plans, are presented.

scholarly journals EXPERIMENTAL TESTS OF QUANTUM MECHANICS PAULI EXCLUSION PRINCIPLE VIOLATION (THE VIP EXPERIMENT) AND FUTURE PERSPECTIVES

2011 ◽  
Vol 09 (supp01) ◽  
pp. 145-154 ◽  
Author(s):  
C. CURCEANU (PETRASCU) ◽  
S. BARTALUCCI ◽  
M. BRAGADIREANU ◽  
C. GUARALDO ◽  
M. ILIESCU ◽  
...  
Keyword(s):  
Experimental Technique ◽  
Experimental Tests ◽  
Pauli Exclusion Principle ◽  
Exclusion Principle ◽  
Mathematical Framework ◽  
X Rays ◽  
A Value ◽  
Collapse Models ◽  
Modern Physics ◽  
Lively Debate

The Pauli exclusion principle (PEP) is one of the basic principles of modern physics. Being at the very basis of our understanding of matter, as many other fundamental principles it spurs, presently, a lively debate on its possible limits, deeply rooted in the very foundations of Quantum Field Theory. Therefore, it is extremely important to test the limits of its validity. Quon theory provides a suitable mathematical framework of possible violation of PEP, where the violation parameter q translates into a probability of violating PEP. Experimentally, setting a bound on PEP violation means confining the violation parameter to a value very close to either 1 (for bosons) or -1 (for fermions). The VIP (VIolation of the Pauli exclusion principle) experiment established a limit on the probability that PEP is violated by electrons, using the method of searching for PEP forbidden atomic transitions in copper. We describe the experimental method, the obtained results, both in terms of the q-parameter from quon theory and as probability of PEP violation, we briefly discuss them and present future plans to go beyond the actual limit by upgrading the experimental technique using vetoed new spectroscopical fast Silicon Drift Detectors. We also shortly mention the possibility of using a similar experimental technique to search for eventual X-rays, generated in the spontaneous collapse models.

The X-ray machine for the examination of quantum mechanics

2016 ◽  
Vol 14 (04) ◽  
pp. 1640017 ◽  
Author(s):  
Catalina Curceanu ◽  
Sergio Bartalucci ◽  
Angelo Bassi ◽  
Massimiliano Bazzi ◽  
Sergio Bertolucci ◽  
...  
Keyword(s):  
Wave Function ◽  
Quantum Mechanics ◽  
Pauli Exclusion Principle ◽  
Exclusion Principle ◽  
X Rays ◽  
X Ray ◽  
The Future ◽  
Spontaneous Localization ◽  
Continuous Spontaneous Localization ◽  
Future Plans

By performing X-rays measurements in the underground laboratory of Gran Sasso, LNGS-INFN, we test a basic principle of quantum mechanics: the Pauli exclusion principle (PEP). In the future, we aim to use a similar experimental technique to search for X-rays as a signature of the spontaneous collapse of the wave function predicted by continuous spontaneous localization theories. We present the achieved results of the VIP experiment and the future plans to gain two orders of magnitude in testing PEP with the recently VIP2 setup installed at Gran Sasso.

scholarly journals X rays on quantum mechanics: Pauli Exclusion Principle and collapse models at test

2015 ◽  
Vol 631 ◽  
pp. 012068 ◽  
Author(s):  
C Curceanu ◽  
S Bartalucci ◽  
A Bassi ◽  
S Bertolucci ◽  
C Berucci ◽  
...  
Keyword(s):  
Quantum Mechanics ◽  
Pauli Exclusion Principle ◽  
Exclusion Principle ◽  
X Rays ◽  
Collapse Models

scholarly journals VIP: AN EXPERIMENT TO SEARCH FOR A VIOLATION OF THE PAULI EXCLUSION PRINCIPLE

2007 ◽  
Vol 22 (02n03) ◽  
pp. 242-248 ◽  
Author(s):  
E. Milotti ◽  
S. Bartalucci ◽  
S. Bertolucci ◽  
M. Bragadireanu ◽  
M. Cargnelli ◽  
...  
Keyword(s):  
Quantum Mechanics ◽  
Basic Principle ◽  
Pauli Exclusion Principle ◽  
Experimental Results ◽  
Underground Laboratory ◽  
Exclusion Principle

The Pauli Exclusion Principle is a basic principle of Quantum Mechanics, and its validity has never been seriously challenged. However, given its fundamental standing, it is very important to check it as thoroughly as possible. Here we describe the VIP (VIolation of the Pauli exclusion principle) experiment, an improved version of the Ramberg and Snow experiment (E. Ramberg and G. Snow, Phys. Lett. B238, 438 (1990)); VIP has just completed the installation at the Gran Sasso underground laboratory, and aims to test the Pauli Exclusion Principle for electrons with unprecedented accuracy, down to β2/2 ≈ 10-30 - 10-31. We report preliminary experimental results and briefly discuss some of the implications of a possible violation.

scholarly journals New experimental limit on Pauli exclusion principle violation by electrons (VIP experiment)

2007 ◽  
Vol 67 ◽  
pp. 012033
Author(s):  
S Bartalucci ◽  
S Bertolucci ◽  
M Bragadireanu ◽  
M Cargnelli ◽  
M Catitti ◽  
...  
Keyword(s):  
Pauli Exclusion Principle ◽  
Exclusion Principle ◽  
Experimental Limit

Quantum mechanics under X-rays in the Gran Sasso underground laboratory

2017 ◽  
Vol 15 (08) ◽  
pp. 1740004 ◽  
Author(s):  
Catalina Curceanu ◽  
Diana Sirghi ◽  
Florin Sirghi ◽  
Sergio Bartalucci ◽  
Massimiliano Bazzi ◽  
...  
Keyword(s):  
Quantum Mechanics ◽  
Measurement Problem ◽  
Pauli Exclusion Principle ◽  
Underground Laboratory ◽  
Exclusion Principle ◽  
X Rays ◽  
X Ray ◽  
Localization Model ◽  
Continuous Spontaneous Localization ◽  
Broad Region

By performing X-ray measurements in the “cosmic silence” of the underground laboratory of Gran Sasso, LNGS-INFN, we test a basic principle of quantum mechanics: the Pauli Exclusion Principle (PEP) for electrons. We present the achieved results of the VIP experiment and the ongoing VIP2 measurement aiming to gain two orders of magnitude improvement in testing PEP. X-ray emission can also be used to put strong constraints on the parameters of the Continuous Spontaneous Localization Model, which was introduced as a possible solution to the measurement problem in Quantum Mechanics. A Bayesian analysis of the data collected by IGEX will be presented, which allows to exclude a broad region of the parameter space which characterizes this model.

scholarly journals Search for the violation of Pauli Exclusion Principle at LNGS

2018 ◽  
Vol 182 ◽  
pp. 02118 ◽  
Author(s):  
H. Shi ◽  
S. Bartalucci ◽  
M. Bazzi ◽  
S. Bertolucci ◽  
A.M. Bragadireanu ◽  
...  
Keyword(s):  
Ground State ◽  
Pauli Exclusion Principle ◽  
Exclusion Principle ◽  
X Rays ◽  
Future Perspectives ◽  
Atomic Transitions ◽  
The Future ◽  
Better Than

In the VIP (VIolation of Pauli exclusion principle) and its follow-up VIP- 2 experiments at the Laboratori Nazionali del Gran Sasso, we test the validity of the Pauli Exclusion Principle, by searching for x-rays from copper atomic transitions from a 2p orbit electron to the ground state which is already occupied by two electrons. Such transitions are prohibited by the Pauli Exclusion Principle. The physics run of the VIP-2 experiment started in late 2016 and will collect data for three years. From the first data taking period of two months we have obtained a new limit better than the VIP result from three years of running. In this article we present the published first physics result from the VIP-2 experiment and discuss about the future perspectives.

Hunting the "impossible atoms" Pauli exclusion principle violation and spontaneous collapse of the wave function at test

2014 ◽  
Vol 12 (07n08) ◽  
pp. 1560012
Author(s):  
Catalina Curceanu ◽  
Sergio Bartalucci ◽  
Angelo Bassi ◽  
Sergio Bertolucci ◽  
Carolina Berucci ◽  
...  
Keyword(s):  
Wave Function ◽  
Foundations Of Quantum Mechanics ◽  
Pauli Exclusion Principle ◽  
Exclusion Principle ◽  
X Rays ◽  
Experimental Apparatus ◽  
Lively Debate ◽  
Spontaneous Localization ◽  
Continuous Spontaneous Localization ◽  
Actual Limit

The Pauli exclusion principle (PEP) and, more generally, the spin-statistics connection, are at the very basis of our understanding of matter, life and Universe. The PEP spurs, presently, a lively debate on its possible limits, deeply rooted in the very foundations of Quantum Mechanics. It is, therefore, extremely important to test the limits of its validity. The Violation of the PEP (VIP) experiment established the best limit on the probability that PEP is violated by electrons, using the method of searching for PEP forbidden atomic transitions in copper. We describe the experimental method, the obtained results, and plans to go beyond the actual limit by upgrading the experimental apparatus. We discuss the possibility of using a similar experimental technique to search for X-rays as a signature of the spontaneous collapse of the wave function predicted by continuous spontaneous localization (CSL) theories.

Sign in / Sign up

Export Citation Format

Share Document