33 citations · 188 across the 26 of their papers we have counts for
5 papers · 1 filter
Invariance of success probability in Grover's quantum search under local noise with memory
Sheikh Parvez Mandal, Ahana Ghoshal, Chirag Srivastava +1
We analyze the robustness of Grover's quantum search algorithm performed by a quantum register under a possibly time-correlated noise acting locally on the qubits. We model the noi…
Entanglement witnessing by arbitrarily many independent observers recycling a local quantum shared state
Chirag Srivastava, Mahasweta Pandit, Ujjwal Sen
We investigate the scenario where an observer, Alice, shares a two-qubit state with an arbitrary number of observers, Bobs, via sequentially and independently recycling the qubit i…
Quantum coherence with incomplete set of pointers and corresponding wave-particle duality
Ingita Banerjee, Kornikar Sen, Chirag Srivastava +1
Quantum coherence quantifies the amount of superposition in a quantum system, and is the reason and resource behind several phenomena and technologies. It depends on the natural ba…
Measurement-device-independent nonlinear entanglement witnesses
Kornikar Sen, Chirag Srivastava, Ujjwal Sen
Entanglement witnesses are one of the most effective methods to detect entanglement. It is known that nonlinear entanglement witnesses provide better entanglement detection than th…
Quantum information can remain without physical body in volatile form
Brij Mohan, Sohail, Chirag Srivastava +2
A deeply rooted view in classical and quantum information is that "information is physical", i.e., to store and process information, we need a physical body. Here we ask whether qu…