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quant-ph2026
High-purity entanglement mediated by magnons despite weak coupling
Sanchar Sharma
Entangling distant spins via a shared magnonic bus typically faces a tradeoff: stronger spin-magnon coupling increases the entanglement fidelity, but also the spin decay rate. We p…
quant-ph2025
Bosonic quantum error correction with microwave cavities for quantum repeaters
S. Siddardha Chelluri, Sanchar Sharma, Frank Schmidt +2
Long-distance quantum communication necessitates the use of quantum repeaters, which typically include highly coherent quantum memories. We provide a theoretical analysis of the se…
quant-ph2024
Magnon-mediated quantum gates for superconducting qubits
Martijn Dols, Sanchar Sharma, Lenos Bechara +3
We propose a hybrid quantum system consisting of a magnetic particle inductively coupled to two superconducting transmon qubits, where qubit-qubit interactions are mediated via mag…