4 papers · 1 filter
Genuine and Non-Genuine Quantum Non-Markovianity: A Unified Information-Theoretic Review
Rajeev Gangwar, Ujjwal Sen
Understanding whether the features of open quantum dynamics are genuinely quantum remains a central challenge in quantum dynamics. Even though the non-Markovian behavior of quantum…
Bounds on Entanglement Dynamics from Krylov-Space Spreading
Swati Choudhary, Sukrut Mondkar, Ujjwal Sen
A recently developed notion, known as spread complexity, captures how a quantum state spreads in Krylov space under unitary evolution. Related Krylov-space approaches are increasin…
Interference between lossy quantum evolutions activates information backflow
Sutapa Saha, Ujjwal Sen
Quantum evolutions are often non-unitary and in such cases, they are frequently regarded as lossy. Such lossiness, however, does not necessarily persist throughout the evolution, a…
The 1964 paper of John Bell
Ujjwal Sen
We present a commentary on the famous 1964 paper of John Bell that rules out the entire class of underlying hidden variable theories for quantum mechanics that are local.