On the Speed-up of Wave-like Dark Matter Searches with Entangled Qubits

2025/10/13 by Arushi Bodas, Bodas, Arushi, Sohitri Ghosh +3 · 1 voice · 2 citations
Physics and Astronomy · #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Particle physics theoretical and experimental studies #astro-ph.CO #hep-ex #hep-ph #quant-ph

paper · pdf · doi:10.48550/arxiv.2510.11795

openalex publication_date 2025/10/13 · openalex created_date 2025/10/17 · openalex updated_date 2026/07/28

Abstract

Qubit-based sensing platforms offer promising new directions for wave-like dark matter searches. Recent proposals demonstrate that entangled qubits can achieve quadratic scaling of the signal in the number of qubits. In this work we expand on these proposals to analyze the bandwidth and scan rate performance of entangled qubit protocols across different error regimes. We find that the phase-based readout of entangled protocols preserves the search bandwidth independent of qubit number, in contrast to power-based detection schemes, thereby achieving a genuine scan-rate advantage. We derive coherence time and error rate requirements for qubit systems to realize this advantage. Applying our analysis to dark photon searches, we find that entangled states of approximately 100 qubits can become competitive with benchmark photon-counting cavity experiments for masses \gtrsim 30-40~μ\rm eV, provided sufficiently low error rates are achieved. The advantage increases at higher masses where cavity volume scaling becomes less favorable.

Citations

• Toward 48 dB Spin Squeezing and 96 dB Signal Magnification for Cosmic Relic Searches with Nuclear Spins
• Quantum-enhanced dark matter detection using Schrödinger cat states
• Code and supporting files for "Ultracoherent superconducting cavity-based multiqudit platform with error-resilient control"
• Search for Dark Photon Dark Matter with a Mass around 36.1 μeV Using a Frequency-tunable Cavity Controlled through a Coupled Superconducting Qubit
• Search for Axion Dark Matter from 1.1 to 1.3 GHz with ADMX
• 2D transmons with lifetimes and coherence times exceeding 1 millisecond
• A Flux-Tunable cavity for Dark matter detection
• Maximizing Quantum Enhancement in Axion Dark Matter Experiments
• Millimeter-Wave Superconducting Qubit
• Superradiant Interactions of the Cosmic Neutrino Background, Axions, Dark Matter, and Reactor Neutrinos
• Search for QCD axion dark matter with transmon qubits and quantum circuit
• Superconducting Qubits Above 20 GHz Operating over 200 mK
• Dark Matter Searches on a Photonic Chip
• Millisecond coherence in a superconducting qubit
• Circuit Quantum Electrodynamics
• Quantum-Enhanced Measurements: Beating the Standard Quantum Limit

Cited by

• Quantum Error Correction-like Noise Mitigation for Wave-like Dark Matter Searches with Quantum Sensors
• Quantum Enhanced Dark-Matter Search with Entangled Fock States in High-Quality Cavities
• Dark matter detection using optically trapped Rydberg atom tweezer arrays

Discussions

• Always happy to holler about my pals’ work! Here’s a paper demonstrating quantum advantage in using entangled qubits for dark matter searches 🧪 arxiv.org/abs/2510.11795 [bsky, 5 points, 1 comments]

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• Quantum Error Correction-like Noise Mitigation for Wave-like Dark Matter Searches with Quantum Sensors
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• Coherent collective response in many-qubit systems for dark matter detection
• A cavity entanglement and state swapping method to accelerate the search for axion dark matter