Summary
"Quantum mechanics suffer from a fundamental internal inconsistency problem usually denoted as ""measurement problem"". Many attempts have been made to solve it and, among them, spontaneous collapse theories are a promising way to do it. The main idea of such theories is to modify the fundamental dynamics described by quantum mechanics in such a way that this modification is practically negligible for microscopic systems but becomes more and more important with the mass of the system, providing a consistent way to describe every system ranging from microscopic to macroscopic. However, more than forty years after the introduction of spontaneous collapse models, we still do not have a satisfying relativistic spontaneous collapse model, i.e., a spontaneous collapse model compatible with special relativity in the same (or similar) way that quantum field theory makes standard quantum mechanics compatible with special relativity.
The two most important spontaneous collapse theories are the Ghirardi-Rimini-Weber (GRW) and the Continuous Spontaneous Localization (CSL) models. The former associates spontaneous collapse to particles while the latter introduces a fundamental noise disturbing the Schrödinger dynamics of fields. Our goal is to tackle the problem of developing a relativistic collapse theory on the basis of a new kind of spontaneous collapse model proposed by the applicant in a recent publication, where it is shown that this new model behaves consistently with the GRW and CSL models in the non-relativistic regime. In this new model, collapses are not a process inherent to the particles (or fields) but to spacetime itself. By treating spacetime in a relativistic way and exploiting the formalism of quantum field theory, we hope to develop a complete relativistic spontaneous collapse model. Any advancement in this sense, even partial ones, would represent a breakthrough in the field of ""Foundations of Physics""."
The two most important spontaneous collapse theories are the Ghirardi-Rimini-Weber (GRW) and the Continuous Spontaneous Localization (CSL) models. The former associates spontaneous collapse to particles while the latter introduces a fundamental noise disturbing the Schrödinger dynamics of fields. Our goal is to tackle the problem of developing a relativistic collapse theory on the basis of a new kind of spontaneous collapse model proposed by the applicant in a recent publication, where it is shown that this new model behaves consistently with the GRW and CSL models in the non-relativistic regime. In this new model, collapses are not a process inherent to the particles (or fields) but to spacetime itself. By treating spacetime in a relativistic way and exploiting the formalism of quantum field theory, we hope to develop a complete relativistic spontaneous collapse model. Any advancement in this sense, even partial ones, would represent a breakthrough in the field of ""Foundations of Physics""."
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| Web resources: | https://cordis.europa.eu/project/id/101150889 |
| Start date: | 19-02-2025 |
| End date: | 18-02-2027 |
| Total budget - Public funding: | - 172 750,00 Euro |
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Original description
"Quantum mechanics suffer from a fundamental internal inconsistency problem usually denoted as ""measurement problem"". Many attempts have been made to solve it and, among them, spontaneous collapse theories are a promising way to do it. The main idea of such theories is to modify the fundamental dynamics described by quantum mechanics in such a way that this modification is practically negligible for microscopic systems but becomes more and more important with the mass of the system, providing a consistent way to describe every system ranging from microscopic to macroscopic. However, more than forty years after the introduction of spontaneous collapse models, we still do not have a satisfying relativistic spontaneous collapse model, i.e., a spontaneous collapse model compatible with special relativity in the same (or similar) way that quantum field theory makes standard quantum mechanics compatible with special relativity.The two most important spontaneous collapse theories are the Ghirardi-Rimini-Weber (GRW) and the Continuous Spontaneous Localization (CSL) models. The former associates spontaneous collapse to particles while the latter introduces a fundamental noise disturbing the Schrödinger dynamics of fields. Our goal is to tackle the problem of developing a relativistic collapse theory on the basis of a new kind of spontaneous collapse model proposed by the applicant in a recent publication, where it is shown that this new model behaves consistently with the GRW and CSL models in the non-relativistic regime. In this new model, collapses are not a process inherent to the particles (or fields) but to spacetime itself. By treating spacetime in a relativistic way and exploiting the formalism of quantum field theory, we hope to develop a complete relativistic spontaneous collapse model. Any advancement in this sense, even partial ones, would represent a breakthrough in the field of ""Foundations of Physics""."
Status
SIGNEDCall topic
HORIZON-MSCA-2023-PF-01-01Update Date
25-11-2024
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