Causality and a possible interpretation of quantum mechanics
- URL: http://arxiv.org/abs/2402.05450v2
- Date: Mon, 19 Feb 2024 08:02:59 GMT
- Title: Causality and a possible interpretation of quantum mechanics
- Authors: Kaixun Tu and Qing Wang
- Abstract summary: We propose a framework based on quantum field theory to integrate relativistic causality, quantum non-locality, and quantum measurement.
We utilize reduced density matrices to characterize the local information of the quantum state and demonstrate that they cannot evolve superluminally.
It is precisely these renormalization that prompts us to question the validity of the derivation of quantum paradoxes and lead us to propose a very natural and relativistically compatible interpretation of quantum mechanics.
- Score: 3.236774847052122
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: From the ancient Einstein-Podolsky-Rosen paradox to the recent Sorkin-type
impossible measurements problem, the contradictions between relativistic
causality, quantum non-locality, and quantum measurement have persisted. Our
work provides a framework based on quantum field theory to harmoniously
integrate these three aspects. This framework consists of causality expressed
by reduced density matrices and an interpretation of quantum mechanics that
considers quantum mechanics to be complete. Specifically, we utilize reduced
density matrices to characterize the local information of the quantum state and
demonstrate that they cannot evolve superluminally. Unlike recent approaches
focusing on causality, we do not introduce new operators or fields specifically
to describe detectors; instead, everything (including detectors, environments,
and humans) is composed of the same fundamental fields, leading to complex
renormalization. It is precisely these renormalization that prompts us to
question the validity of the derivation of quantum paradoxes and lead us to
propose a very natural and relativistically compatible interpretation of
quantum mechanics.
Related papers
- A computational test of quantum contextuality, and even simpler proofs of quantumness [43.25018099464869]
We show that an arbitrary contextuality game can be compiled into an operational "test of contextuality" involving a single quantum device.
Our work can be seen as using cryptography to enforce spatial separation within subsystems of a single quantum device.
arXiv Detail & Related papers (2024-05-10T19:30:23Z) - Everything is Entangled in Quantum Mechanics: Are the Orthodox Measures Physically Meaningful? [0.0]
We will argue that this new line of research is capable not only to evade the many open problems which appear within the mainstream literature, but is also able to present a consistent and coherent physical understanding of entanglement.
arXiv Detail & Related papers (2024-05-09T13:22:10Z) - Embezzling entanglement from quantum fields [41.94295877935867]
Embezzlement of entanglement refers to the counterintuitive possibility of extracting entangled quantum states from a reference state of an auxiliary system.
We uncover a deep connection between the operational task of embezzling entanglement and the mathematical classification of von Neumann algebras.
arXiv Detail & Related papers (2024-01-14T13:58:32Z) - Unraveling the Mystery of Quantum Measurement with A New Space-Time
Approach to Relativistic Quantum Mechanics [11.186131141980502]
Quantum measurement is a fundamental concept in the field of quantum mechanics.
Despite its significance, four fundamental issues continue to pose significant challenges to the broader application of quantum measurement.
We employ a new space-time approach to relativistic quantum mechanics to address these issues systematically.
arXiv Detail & Related papers (2023-06-01T13:25:08Z) - Quantum Relativity [0.0]
A new quantum postulate is suggested to restore classical locality and causality to quantum physics.
This postulate supports the EPR view that quantum mechanics is incomplete, while also staying compatible to the Bohr view that nothing exists beyond the quantum.
arXiv Detail & Related papers (2023-02-04T02:05:25Z) - Quantum Instability [30.674987397533997]
We show how a time-independent, finite-dimensional quantum system can give rise to a linear instability corresponding to that in the classical system.
An unstable quantum system has a richer spectrum and a much longer recurrence time than a stable quantum system.
arXiv Detail & Related papers (2022-08-05T19:53:46Z) - Quantum nonreciprocal interactions via dissipative gauge symmetry [18.218574433422535]
One-way nonreciprocal interactions between two quantum systems are typically described by a cascaded quantum master equation.
We present a new approach for obtaining nonreciprocal quantum interactions that is completely distinct from cascaded quantum systems.
arXiv Detail & Related papers (2022-03-17T15:34:40Z) - Quantum tomography explains quantum mechanics [0.0]
A suggestive notion for what constitutes a quantum detector leads to a logically impeccable definition of measurement.
The various forms of quantum tomography for quantum states, quantum detectors, quantum processes, and quantum instruments are discussed.
The new approach is closer to actual practice than the traditional foundations.
arXiv Detail & Related papers (2021-10-11T14:09:30Z) - Quantum Causal Inference in the Presence of Hidden Common Causes: an
Entropic Approach [34.77250498401055]
We put forth a new theoretical framework for merging quantum information science and causal inference by exploiting entropic principles.
We apply our proposed framework to an experimentally relevant scenario of identifying message senders on quantum noisy links.
This approach can lay the foundations of identifying originators of malicious activity on future multi-node quantum networks.
arXiv Detail & Related papers (2021-04-24T22:45:50Z) - Multiple uncertainty relation for accelerated quantum information [8.598192865991367]
We demonstrate a relativistic protocol of an uncertainty game in the presence of localized fermionic quantum fields inside cavities.
A novel lower bound for entropic uncertainty relations with multiple quantum memories is given in terms of the Holevo quantity.
arXiv Detail & Related papers (2020-04-21T03:29:39Z) - Entropic Uncertainty Relations and the Quantum-to-Classical transition [77.34726150561087]
We aim to shed some light on the quantum-to-classical transition as seen through the analysis of uncertainty relations.
We employ entropic uncertainty relations to show that it is only by the inclusion of imprecision in our model of macroscopic measurements that we can prepare a system with two simultaneously well-defined quantities.
arXiv Detail & Related papers (2020-03-04T14:01:17Z)
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.