Quantum Enhancement in Dark Matter Detection with Quantum Computation
- URL: http://arxiv.org/abs/2311.10413v1
- Date: Fri, 17 Nov 2023 09:36:14 GMT
- Title: Quantum Enhancement in Dark Matter Detection with Quantum Computation
- Authors: Shion Chen, Hajime Fukuda, Toshiaki Inada, Takeo Moroi, Tatsumi Nitta,
Thanaporn Sichanugrist
- Abstract summary: We propose a novel method to significantly enhance the signal rate in the qubit-based dark matter detection experiments.
We show that the signal rate scales proportionally to $n_rm q2$, with $n_rm q$ being the number of sensor qubits.
In the dark matter detection with a substantial number of sensor qubits, a significant increase in the signal rate can be expected.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: We propose a novel method to significantly enhance the signal rate in the
qubit-based dark matter detection experiments with the help of quantum
interference. Various quantum sensors possess ideal properties for detecting
wave-like dark matter, and qubits, commonly employed in quantum computers, are
excellent candidates for dark matter detectors. We demonstrate that, by
designing an appropriate quantum circuit to manipulate the qubits, the signal
rate scales proportionally to $n_{\rm q}^2$, with $n_{\rm q}$ being the number
of sensor qubits, rather than linearly with $n_{\rm q}$. Consequently, in the
dark matter detection with a substantial number of sensor qubits, a significant
increase in the signal rate can be expected. We provide a specific example of a
quantum circuit that achieves this enhancement by coherently combining the
phase evolution in each individual qubit due to its interaction with dark
matter. We also demonstrate that the circuit is fault tolerant to de-phasing
noises, a critical quantum noise source in quantum computers. The enhancement
mechanism proposed here is applicable to various modalities for quantum
computers, provided that the quantum operations relevant to enhancing the dark
matter signal can be applied to these devices.
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