Speaker
Description
Dark matter searches using superconducting qubits have so far been carried out with qubits individually fabricated for quantum-sensing purposes. Extending such searches to a broadband scan over many candidate dark matter masses using multiple qubits, however, requires a large number of high-quality qubits with well-controlled properties. Superconducting quantum computers, in contrast, provide many frequency tunable qubits with long coherence times, making them a promising platform for dark matter searches over a wide mass range.
In this talk, we report results from a dark matter search performed with a single qubit on a superconducting quantum computer, in which the qubit transition frequency is tuned to match the dark matter mass. We further discuss an extension of this technique using multi-qubit entangled states (W states and GHZ states), which can in principle enhance sensitivity beyond the standard quantum limit.
| Primary Abstract Topic | Experiment: Axions and Wave-Like-DM |
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