3 papers
quant-ph2026
Characterization of a damping channel as a mixture of amplitude damping and anti-damping channels of different parameters
Vijay Pathak, R. Srikanth
Non-unital noise is a fundamental feature of open quantum systems, governing energy exchange and inducing state translations on the Bloch sphere. While such translations can be use…
cond-mat.other2025
Analytical classification of Majorana zero-mode spatial profiles in extended Kitaev chains: probability maxima can shift inward
Vijay Pathak, Vaishnav Mallya, Sujit Sarkar
Topological phases in one-dimensional superconducting systems are commonly characterized by symmetry-protected invariants. These invariants determine the number of Majorana zero-en…
quant-ph2025
On the distinction between distinguishability of states and witness of non-Markovianity of dynamical maps
Vijay Pathak, R. Srikanth
Non-P-divisibility is the strongest divisibility-based notion of quantum non-Markovianity. The generalized trace distance (GTD) based criterion is known to be an optimal witness of…