Present status and future challenges of non-interferometric tests of collapse models

• URL: http://arxiv.org/abs/2203.04231v1
• Date: Tue, 8 Mar 2022 17:49:03 GMT
• Title: Present status and future challenges of non-interferometric tests of collapse models
• Authors: Matteo Carlesso and Sandro Donadi and Luca Ferialdi and Mauro Paternostro and Hendrik Ulbricht and Angelo Bassi
• Abstract summary: We discuss collapse models and the quantum superposition principle. Non-interferometric experiments proved to be the most effective in testing these models. We provide an overview of such experiments, including cold atoms, optomechanical systems, X-rays detection, bulk heating as well as comparisons with cosmological observations.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: The superposition principle is the cornerstone of quantum mechanics, leading to a variety of genuinely quantum effects. Whether the principle applies also to macroscopic systems or, instead, there is a progressive breakdown when moving to larger scales, is a fundamental and still open question. Spontaneous wavefunction collapse models predict the latter option, thus questioning the universality of quantum mechanics. Technological advances allow to challenge collapse models and the quantum superposition principle more and more with a variety of different experiments. Among them, non-interferometric experiments proved to be the most effective in testing these models. We provide an overview of such experiments, including cold atoms, optomechanical systems, X-rays detection, bulk heating as well as comparisons with cosmological observations. We also discuss avenues for future dedicated experiments, which aim at further testing collapse models and the validity of quantum mechanics.

Related papers

• Testing Continuous Spontaneous Localization model with charged macro-molecules [0.0]
  Quantum experiments are now finally within the reach of testing such models. We propose a method based on a two-ions confined in a linear Paul trap to possibly enhance the testing capabilities of such experiments.
  arXiv  Detail & Related papers  (2023-11-23T12:28:21Z)
• Quantum data learning for quantum simulations in high-energy physics [55.41644538483948]
  We explore the applicability of quantum-data learning to practical problems in high-energy physics. We make use of ansatz based on quantum convolutional neural networks and numerically show that it is capable of recognizing quantum phases of ground states. The observation of non-trivial learning properties demonstrated in these benchmarks will motivate further exploration of the quantum-data learning architecture in high-energy physics.
  arXiv  Detail & Related papers  (2023-06-29T18:00:01Z)
• Collapse models and gravitational decoherence at test: How far can we push the limits of quantum mechanics? [0.0]
  Collapse models describe the breakdown of the quantum superposition principle when moving from microscopic to macroscopic scales. I will provide an overview on how one can test collapse models, and which are the future theoretical and experimental challenges ahead.
  arXiv  Detail & Related papers  (2023-03-09T14:27:36Z)
• Universality of critical dynamics with finite entanglement [68.8204255655161]
  We study how low-energy dynamics of quantum systems near criticality are modified by finite entanglement. Our result establishes the precise role played by entanglement in time-dependent critical phenomena.
  arXiv  Detail & Related papers  (2023-01-23T19:23:54Z)
• A Quantum-Classical Model of Brain Dynamics [62.997667081978825]
  Mixed Weyl symbol is used to describe brain processes at the microscopic level. Electromagnetic fields and phonon modes involved in the processes are treated either classically or semi-classically. Zero-point quantum effects can be incorporated into numerical simulations by controlling the temperature of each field mode.
  arXiv  Detail & Related papers  (2023-01-17T15:16:21Z)
• Demonstrating Quantum Microscopic Reversibility Using Coherent States of Light [58.8645797643406]
  We propose and experimentally test a quantum generalization of the microscopic reversibility when a quantum system interacts with a heat bath. We verify that the quantum modification for the principle of microscopic reversibility is critical in the low-temperature limit.
  arXiv  Detail & Related papers  (2022-05-26T00:25:29Z)
• Probing the limits of quantum theory with quantum information at subnuclear scales [0.13844779265721088]
  We propose a new theoretical framework of Q-data tests. It recognises the established validity of quantum theory, but allows for more general -- 'post-quantum' -- scenarios in certain physical regimes.
  arXiv  Detail & Related papers  (2021-03-22T16:47:39Z)
• Engineering analog quantum chemistry Hamiltonians using cold atoms in optical lattices [69.50862982117127]
  We benchmark the working conditions of the numerically analog simulator and find less demanding experimental setups. We also provide a deeper understanding of the errors of the simulation appearing due to discretization and finite size effects.
  arXiv  Detail & Related papers  (2020-11-28T11:23:06Z)
• Probing quantum gravity effects with quantum mechanical oscillators [0.0]
  Phenomenological models aiming to join gravity and quantum mechanics often predict effects that are potentially measurable in low-energy experiments. We propose experiments aiming to observe possible quantum gravity effects on macroscopic mechanical oscillators.
  arXiv  Detail & Related papers  (2020-04-29T17:49:34Z)
• Quantum-classical hypothesis tests in macroscopic matter-wave interferometry [0.0]
  We assess the most macroscopic matter-wave experiments to date by demonstrating interference of heavy molecules and cold atomic ensembles. This protocol may serve as a guide for the design of future matter-wave experiments ever closer to truly macroscopic scales.
  arXiv  Detail & Related papers  (2020-04-07T13:51:40Z)
• Quantum Hall phase emerging in an array of atoms interacting with photons [101.18253437732933]
  Topological quantum phases underpin many concepts of modern physics. Here, we reveal that the quantum Hall phase with topological edge states, spectral Landau levels and Hofstadter butterfly can emerge in a simple quantum system. Such systems, arrays of two-level atoms (qubits) coupled to light being described by the classical Dicke model, have recently been realized in experiments with cold atoms and superconducting qubits.
  arXiv  Detail & Related papers  (2020-03-18T14:56:39Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.