On the Feasibility of Bell Inequality Violation at ATLAS Experiment with Flavor Entanglement of $B^{0}\bar{B}^{0}$ Pairs from $pp$ Collisions

• URL: http://arxiv.org/abs/2106.07399v2
• Date: Tue, 15 Jun 2021 04:07:59 GMT
• Title: On the Feasibility of Bell Inequality Violation at ATLAS Experiment with Flavor Entanglement of $B^{0}\bar{B}^{0}$ Pairs from $pp$ Collisions
• Authors: Yosuke Takubo, Tsubasa Ichikawa, Satoshi Higashino, Yuichiro Mori, Kunihiro Nagano, Izumi Tsutsui
• Abstract summary: We examine the feasibility of the Bell test (i.e., detecting a violation of the Bell inequality) with the ATLAS detector in Large Hadron Collider (LHC) at CERN through the flavor entanglement between the B mesons. We show in our simulation study that under realistic conditions (expected from the LHC Run 3 operation) the Bell test is feasible under mild assumptions. This result suggests the possibility of the Bell test in much higher energy domains and may open up a new arena for experimental studies of quantum foundations.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We examine the feasibility of the Bell test (i.e., detecting a violation of the Bell inequality) with the ATLAS detector in Large Hadron Collider (LHC) at CERN through the flavor entanglement between the B mesons. After addressing the possible issues that arise associated with the experiment and how they may be treated based on an analogy with conventional Bell tests, we show in our simulation study that under realistic conditions (expected from the LHC Run 3 operation) the Bell test is feasible under mild assumptions. The definitive factor for this promising result lies primarily in the fact that the ATLAS detector is capable of measuring the decay times of the B mesons independently, which was not available in the previous experiment with the Belle detector at KEK. This result suggests the possibility of the Bell test in much higher energy domains and may open up a new arena for experimental studies of quantum foundations.

Related papers

• Test of transient deviations from Quantum Mechanics in Bell's experiment [41.94295877935867]
  The conflict between Quantum Mechanics (QM) and Local Realism is most noticeable in the correlations observed between distant regions of a spatially spread entangled state. It has been hypothesized that transient deviations (from the values predicted by QM) may be observed if the correlations are measured in a time shorter than L/c. We present the results of such a test performed on a specially designed optical Bell setup with a distance between stations up to 24 m in straight line.
  arXiv  Detail & Related papers  (2024-04-15T13:01:30Z)
• The BHL-BCL crossover: from nonlinear to linear quantum amplification [55.2480439325792]
  The black-hole laser (BHL) effect is the self-amplification of Hawking radiation between a pair of horizons which act as a resonant cavity. In a flowing atomic condensate, the BHL effect arises in a finite supersonic region, where Bogoliubov-Cherenkov-Landau (BCL) radiation is resonantly excited by any static perturbation. Here, we perform a theoretical study of the BHL-BCL crossover using an idealized model where both phenomena can be unambiguously isolated.
  arXiv  Detail & Related papers  (2023-06-08T18:00:02Z)
• Bell inequality violations with random mutually unbiased bases [0.0]
  We investigate the problem of exhibiting Bell nonlocality for a two-qudit entangled pure state using a randomly chosen set of mutually unbiased bases. We find that even if we employ only two-setting Bell inequalities, we find a significant chance of obtaining a Bell violation if the two parties are individually allowed to measure a sufficient number of MUBs.
  arXiv  Detail & Related papers  (2022-05-09T04:51:30Z)
• Quantum tops at the LHC: from entanglement to Bell inequalities [0.0]
  We introduce a unique set of observables suitable for both measurements, and then perform the corresponding analyses. We find that entanglement can be established at better than 5$sigma$ both at threshold as well as at high $p_T$ already in the LHC Run 2 dataset.
  arXiv  Detail & Related papers  (2021-10-19T17:07:28Z)
• Testing Bell inequalities in Higgs boson decays [0.0]
  Higgs boson decays produce pairs of $W$ bosons in a maximally entangled state, which can be expected to violate Bell inequalities. We show that the spin density matrix of the $Wpm pair may be reconstructed experimentally from the directions of the charged lepton decay products.
  arXiv  Detail & Related papers  (2021-06-02T18:00:01Z)
• Visualizing spinon Fermi surfaces with time-dependent spectroscopy [62.997667081978825]
  We propose applying time-dependent photo-emission spectroscopy, an established tool in solid state systems, in cold atom quantum simulators. We show in exact diagonalization simulations of the one-dimensional $t-J$ model that the spinons start to populate previously unoccupied states in an effective band structure. The dependence of the spectral function on the time after the pump pulse reveals collective interactions among spinons.
  arXiv  Detail & Related papers  (2021-05-27T18:00:02Z)
• Tackling Loopholes in Experimental Tests of Bell's Inequality [0.0]
  Quantum mechanics predicts that measurements on particles in entangled states can be more strongly correlated than Bell's inequality would allow. This chapter reviews three of the most significant loopholes, often dubbed the "locality," "fair-sampling," and "freedom-of-choice" loopholes.
  arXiv  Detail & Related papers  (2020-11-18T14:07:20Z)
• Experimentally verifying anti-Kibble-Zurek behavior in a quantum system under noisy control field [38.305954220018315]
  Kibble-Zurek mechanism (KZM) is a universal framework which could in principle describe phase transition phenomenon. A conflicting observation termed anti-KZ behavior has been reported in the study of ferroelectric phase transition. Our research sets a stage for quantum simulation of such anti-KZ behavior in two-level systems.
  arXiv  Detail & Related papers  (2020-08-03T14:03:21Z)
• Bell nonlocality with intensity information only [0.0]
  We address the problem of detecting Bell nonlocality when the only experimental information is produced by an unknown number of particles. We show that, although Bell nonlocality decreases as the number of particles increases, if the parties can distinguish arbitrarily small differences of intensities. We show that this prediction can be tested with current equipment in a Bell experiment where pairing information is physically removed.
  arXiv  Detail & Related papers  (2020-04-28T11:52:13Z)
• Using Randomness to decide among Locality, Realism and Ergodicity [91.3755431537592]
  An experiment is proposed to find out, or at least to get an indication about, which one is false. The results of such experiment would be important not only to the foundations of Quantum Mechanics.
  arXiv  Detail & Related papers  (2020-01-06T19:26:32Z)
• Bell's theorem for trajectories [62.997667081978825]
  A trajectory is not an outcome of a quantum measurement, in the sense that there is no observable associated with it. We show how to overcome this problem by considering a special case of our generic inequality that can be experimentally tested point-by-point in time.
  arXiv  Detail & Related papers  (2020-01-03T01:40:44Z)

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.