Quantum-Enhanced Picostrain Sensing with Superconducting Qubits

• URL: http://arxiv.org/abs/2511.22407v1
• Date: Thu, 27 Nov 2025 12:34:01 GMT
• Title: Quantum-Enhanced Picostrain Sensing with Superconducting Qubits
• Authors: Necati Çelik,
• Abstract summary: We propose a quantum-enhanced picostrain sensor that achieves Heisenberg-limited strain sensing using superconducting qubits.<n>A strain-sensitive qubit s Hamiltonian is coupled to the momentum quadrature of a microwave resonator, transducing mechanical strain into spatial displacements.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We propose a quantum-enhanced picostrain sensor that achieves Heisenberg-limited strain sensing using superconducting qubits. A strain-sensitive qubit s Hamiltonian is coupled to the momentum quadrature of a microwave resonator, transducing mechanical strain $ε$ into amplified spatial displacements of the resonator s phase space. Using homodyne detection of the resonator field and multipartite entanglement of N qubits, the protocol achieves a strain sensitivity $Δε\sim pε$ (picostrain), two orders of magnitude better than classical sensors. The scheme integrates natively with superconducting processors, enabling in-situ diagnostic and nanoscale material characterization.

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