58 citations · 164 across the 5 of their papers we have counts for
5 papers
Quantum non-Markovianity: Overview and recent developments
U. Shrikant, Prabha Mandayam
In the current era of noisy intermediate-scale quantum (NISQ) devices, research in the theory of open system dynamics has a crucial role to play. In particular, understanding and q…
Quantum walks under superposition of causal order
Prateek Chawla, Shrikant Utagi, C. M. Chandrashekar
We set the criteria under which superposition of causal order can be incorporated in to quantum walks. In particular, we show that only periodic quantum walks or those with at leas…
Temporal self-similarity of quantum dynamical maps as a concept of memorylessness
Shrikant Utagi, R. Srikanth, Subhashish Banerjee
The problem of defining quantum non-Markovianity has proven elusive, with various in-equivalent criteria put forth to address it. The concept of CP-indivisibility and the hierarchy…
Non-Markovian dephasing and depolarizing channels
U. Shrikant, R. Srikanth, Subhashish Banerjee
We introduce a method to construct non-Markovian variants of completely positive (CP) dynamical maps, particularly, qubit Pauli channels. We identify non-Markovianity with the brea…
Decoherence can help quantum cryptographic security
Vishal Sharma, U. Shrikant, R. Srikanth +1
In quantum key distribution, one conservatively assumes that the eavesdropper Eve is restricted only by physical laws, whereas the legitimate parties, namely the sender Alice and r…