24 citations · 45 across the 4 of their papers we have counts for
Showing quant-phShow all
2 papers · 1 filter
quant-ph2020★ 24 cited
Persistence of Topological Phases in Non-Hermitian Quantum Walks
Vikash Mittal, Aswathy Raj, Sanjib Dey +1
Discrete-time quantum walks are known to exhibit exotic topological states and phases. Physical realization of quantum walks in a noisy environment may destroy these phases. We inv…
quant-ph2019★ 21 cited
Controlling decoherence via -symmetric non-Hermitian open quantum systems
Sanjib Dey, Aswathy Raj, Sandeep K. Goyal
We have studied the effect of a non-Hermitian Bosonic bath on the dynamics of a two-level spin system. The non-Hermitian Hamiltonian of the bath is chosen such that it converges to…