Related papers: Intrinsically Quantum Effects of Axion Dark Matter are Undetectable

Intrinsically Quantum Effects of Axion Dark Matter are Undetectable

URL: http://arxiv.org/abs/2510.05198v1
Date: Mon, 06 Oct 2025 18:00:00 GMT
Title: Intrinsically Quantum Effects of Axion Dark Matter are Undetectable
Authors: Yunjia Bao, Dhong Yeon Cheong, Nicholas L. Rodd, Joey Takach, Lian-Tao Wang, Kevin Zhou,
Abstract summary: We show that the axion field could well be in a quantum state that has no complete classical description, but realistic detectors cannot tell the difference.<n>We show that intrinsically quantum effects are washed out by mode averaging or small amounts of noise, and significantly suppressed by the weakness of the axion coupling.<n>Our work exemplifies that there should always be a classical analog for axion dark matter effects, extends to other wave (ultralight) dark-matter candidates, and gives a general method to compute the effects of exotic dark-matter states.
Score: 0.9257363054388225
License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Abstract: Is the usual treatment of axion dark matter as a classical field reliable? We show that the answer is subtle: the axion field could well be in a quantum state that has no complete classical description, but realistic detectors cannot tell the difference. To see this, we solve a fully quantum model of axion detection using quantum optics techniques. We show that intrinsically quantum effects are washed out by mode averaging or small amounts of noise, and significantly suppressed by the weakness of the axion coupling. Our work exemplifies that there should always be a classical analog for axion dark matter effects, extends to other wave (ultralight) dark-matter candidates, and gives a general method to compute the effects of exotic dark-matter states.

Related papers

Quantum-Classical Separation in Bounded-Resource Tasks Arising from Measurement Contextuality [107.84586711462556]
We show that quantum contextuality enables certain tasks to be performed with success probabilities beyond classical limits.<n>Our work proposes novel ways to benchmark quantum processors using contextuality-based algorithms.
arXiv Detail & Related papers (2025-12-01T23:54:32Z)
Enhancing photon-axion conversion probability with squeezed coherent states [0.0]
In particle physics, ultra-light axions could constitute dark matter or dark energy.<n>We formulate the photon-axion conversion in a quantum field theoretical manner.<n>It turns out that squeezed coherent states can enhance the conversion probability.
arXiv Detail & Related papers (2025-06-17T09:50:10Z)
Exploring Quantum Aspects of Dark Matter Axions and Dark Photons Transitioning to Photons in a Resonant Cavity [0.5813063157177947]
We show that at the quantum level, single axion-photon transitions are amplified by the cavity quality factor $Q$.<n>The coherence of dark matter waves is unnecessary during the measurement.
arXiv Detail & Related papers (2024-10-16T14:54:30Z)
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)
Quantum Science and the Search for Axion Dark Matter [91.3755431537592]
The dark matter puzzle is one of the most important open problems in modern physics. Numerous precision experiments are searching for the three non-gravitational interactions of axion-like dark matter.
arXiv Detail & Related papers (2023-04-24T02:52:56Z)
Schr\"odinger cat states of a 16-microgram mechanical oscillator [54.35850218188371]
The superposition principle is one of the most fundamental principles of quantum mechanics. Here we demonstrate the preparation of a mechanical resonator with an effective mass of 16.2 micrograms in Schr"odinger cat states of motion. We show control over the size and phase of the superposition and investigate the decoherence dynamics of these states.
arXiv Detail & Related papers (2022-11-01T13:29:44Z)
Quantum dual-path interferometry scheme for axion dark matter searches [1.0636475069923585]
We show that in a cavity permeated by a magnetic field, the single axion-photon conversion rate is enhanced by the cavity quality factor. The axion cavity can be considered a quantum device emitting single photons with temporal separations.
arXiv Detail & Related papers (2022-01-20T16:55:49Z)
Harvesting quantum coherence from axion dark matter [0.0]
We consider a point-like Unruh-DeWitt detector coupled to the axion field and quantify a coherent measure of the detector. We show that the detector can harvest the quantum coherence from the axion dark matter.
arXiv Detail & Related papers (2021-05-26T14:31:33Z)
The Time-Evolution of States in Quantum Mechanics [77.34726150561087]
It is argued that the Schr"odinger equation does not yield a correct description of the quantum-mechanical time evolution of states of isolated (open) systems featuring events. A precise general law for the time evolution of states replacing the Schr"odinger equation is formulated within the so-called ETH-Approach to Quantum Mechanics.
arXiv Detail & Related papers (2021-01-04T16:09:10Z)
Operational Resource Theory of Imaginarity [48.7576911714538]
We show that quantum states are easier to create and manipulate if they only have real elements. As an application, we show that imaginarity plays a crucial role for state discrimination.
arXiv Detail & Related papers (2020-07-29T14:03:38Z)

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