4 citations · 7 across the 5 of their papers we have counts for
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Practical Tomography of Multi-Time Processes
Abhinash Kumar Roy, Varun Srivastava, Christina Giarmatzi +1
Characterising multi-time quantum processes is essential for analysing temporally correlated noise and for designing effective control and mitigation strategies. A complete operati…
Blind-spots of Randomized Benchmarking Under Temporal Correlations
Varun Srivastava, Abhinash Kumar Roy, Soumik Mahanti +3
Randomized benchmarking (RB) is a widely adopted protocol for estimating the average gate fidelity in quantum hardware. However, its standard formulation relies on the assumption o…
Hamiltonian characterisation of multi-time processes with classical memory
Kaumudibikash Goswami, Abhinash Kumar Roy, Varun Srivastava +4
A central problem in open quantum systems is the characterization of non-Markovian processes, where an environment retains the memory of its interaction with the system. A key dist…
Semi-device-independent certification of quantum non-Markovianity using sequential Random Access Codes
Abhinash Kumar Roy, Varun Srivastava, Soumik Mahanti +2
The characterization of multi-time correlations in open quantum systems is of fundamental importance. In this work, we investigate multi-time processes using the process matrix for…