3 papers
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…
cond-mat.mes-hall2025
Optical signatures of quantum skyrmions
Sanchar Sharma, Christina Psaroudaki
Magnets have recently emerged as promising candidates for quantum computing, particularly using topologically-protected nanoscale spin textures. While the quantum dynamics of such…