Quantum Mechanics: Statistical Balance Prompts Caution in Assessing
Conceptual Implications
- URL: http://arxiv.org/abs/2210.15710v1
- Date: Thu, 27 Oct 2022 18:21:38 GMT
- Title: Quantum Mechanics: Statistical Balance Prompts Caution in Assessing
Conceptual Implications
- Authors: Brian Drummond
- Abstract summary: Statistical balance is a core feature of quantum mechanics, underlying quantum mechanical states, and not yet explained.
"statistical balance" now refers to a feature of contexts in which there is a prescribed probability other than 0 or 1.
Unexplained statistical balance prompts caution in assessing the conceptual implications of entanglement, measurement, uncertainty, and two-slit and Bell-type analyses.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: Throughout quantum mechanics there is statistical balance, in the collective
response of an ensemble of systems to differing measurement types. Statistical
balance is a core feature of quantum mechanics, underlying quantum mechanical
states, and not yet explained. The concept of "statistical balance" is here
explored, comparing its meaning since 2019 with its original meaning in 2001.
Statistical balance now refers to a feature of contexts in which: (a) there is
a prescribed probability other than 0 or 1 for the collective response of an
ensemble to one measurement type; and (b) the collective response of the same
ensemble to another measurement type demonstrates that no well-defined value
can be attributed, for the property relevant to the original measurement type,
to individual members of the ensemble. In some unexplained way, the outcomes of
single runs of a measurement of the original type "balance" each other to give
an overall result in line with the prescribed probability. Unexplained
statistical balance prompts caution in assessing the conceptual implications of
entanglement, measurement, uncertainty, and two-slit and Bell-type analyses.
Physicists have a responsibility to the wider population to be conceptually
precise about quantum mechanics, and to make clear that many possible
conceptual implications are uncertain.
Related papers
- Compatibility of Quantum Measurements and the Emergence of Classical Objectivity [0.0]
We consider the KDQ distributions describing arbitrary collections of measurements on disjoint components of some generic multipartite system.
We show that the system dynamics ensures that these distributions are classical if and only if the Hamiltonian supports Quantum Darwinism.
arXiv Detail & Related papers (2024-11-16T19:01:30Z) - Optimal discrimination of quantum sequences [13.39567116041819]
Key concept of quantum information theory is that accessing information encoded in a quantum system requires us to discriminate between several possible states the system could be in.
In this paper, we prove that if the members of a given sequence are drawn secretly and independently from an ensemble or even from different ensembles, the optimum success probability is achievable by fixed local measurements on the individual members of the sequence.
arXiv Detail & Related papers (2024-09-13T10:48:16Z) - Enhanced Entanglement in the Measurement-Altered Quantum Ising Chain [46.99825956909532]
Local quantum measurements do not simply disentangle degrees of freedom, but may actually strengthen the entanglement in the system.
This paper explores how a finite density of local measurement modifies a given state's entanglement structure.
arXiv Detail & Related papers (2023-10-04T09:51:00Z) - Observable Statistical Mechanics [0.0]
We present Observable Statistical Mechanics, a novel paradigm that shifts attention from the full quantum state to the statistics of measurement outcomes.
This approach is grounded in the Maximum Observable Entropy Principle, positing that equilibrium measurement statistics tend to maximize observable entropy under conserved average energy.
arXiv Detail & Related papers (2023-09-26T18:18:39Z) - Quantification of Entanglement and Coherence with Purity Detection [16.01598003770752]
Entanglement and coherence are fundamental properties of quantum systems, promising to power near future quantum technologies.
Here, we demonstrate quantitative bounds to operationally useful entanglement and coherence.
Our research offers an efficient means of verifying large-scale quantum information processing.
arXiv Detail & Related papers (2023-08-14T11:03:40Z) - Continuously Monitored Quantum Systems beyond Lindblad Dynamics [68.8204255655161]
We study the probability distribution of the expectation value of a given observable over the possible quantum trajectories.
The measurements are applied to the entire system, having the effect of projecting the system into a product state.
arXiv Detail & Related papers (2023-05-06T18:09:17Z) - Full counting statistics as probe of measurement-induced transitions in
the quantum Ising chain [62.997667081978825]
We show that local projective measurements induce a modification of the out-of-equilibrium probability distribution function of the local magnetization.
In particular we describe how the probability distribution of the former shows different behaviour in the area-law and volume-law regimes.
arXiv Detail & Related papers (2022-12-19T12:34:37Z) - A quintet of quandaries: five no-go theorems for Relational Quantum
Mechanics [0.0]
RQM strives to uphold the completeness and universality of quantum theory.
Here we present five nogos that imply it cannot; something has to give way.
arXiv Detail & Related papers (2021-07-01T18:00:15Z) - Quantum indistinguishability through exchangeable desirable gambles [69.62715388742298]
Two particles are identical if all their intrinsic properties, such as spin and charge, are the same.
Quantum mechanics is seen as a normative and algorithmic theory guiding an agent to assess her subjective beliefs represented as (coherent) sets of gambles.
We show how sets of exchangeable observables (gambles) may be updated after a measurement and discuss the issue of defining entanglement for indistinguishable particle systems.
arXiv Detail & Related papers (2021-05-10T13:11:59Z) - Symmetric Informationally Complete Measurements Identify the Irreducible
Difference between Classical and Quantum Systems [0.0]
We describe a general procedure for associating a minimal informationally-complete quantum measurement (or MIC) with a set of linearly independent post-measurement quantum states.
We prove that the representation of the Born Rule obtained from a symmetric informationally-complete measurement (or SIC) minimizes this distinction in at least two senses.
arXiv Detail & Related papers (2018-05-22T16:27:27Z) - Local asymptotic equivalence of pure quantum states ensembles and
quantum Gaussian white noise [2.578242050187029]
We analyse the theory of quantum statistical models consisting of ensembles of quantum systems identically prepared in a pure state.
We use the LAE result in order to establish minimax rates for the estimation of pure states belonging to Hermite-Sobolev classes of wave functions.
arXiv Detail & Related papers (2017-05-09T17:48:40Z)
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.