34 citations · 52 across the 8 of their papers we have counts for
8 papers
Certified quantum supremacy in entanglement-assisted prepare-measure random-access-code
Rajdeep Paul, Prabuddha Roy, A. K. Pan
We develop a family of semi-device-independent (SDI) entanglement-assisted prepare-measure (PM) communication games involving two parties, within the random-access…
Semi-device-independent self-testing of unitary operations
Rajdeep Paul, Prabuddha Roy, A. K. Pan
We present a hitherto unexplored semi-device-independent (SDI) self-testing protocol designed to certify unitary operations within a variant of prepare-measure framework. We consid…
Scalable Self-Testing of Mutually Anticommuting Observables and Maximally Entangled Two-Qudits
Souradeep Sasmal, Ritesh K. Singh, Prabuddha Roy +1
The next frontier in device-independent quantum information lies in the certification of scalable and parallel quantum resources, which underpin advanced quantum technologies. We p…
Device-independent certification of degeneracy-breaking measurements
Prabuddha Roy, Shyam Sundar Mahato, Sumit Mukherjee +1
In a device-independent Bell test, the devices are considered to be black boxes and the dimension of the system remains unspecified. The dichotomic observables involved in such a B…
Generalized parity-oblivious communication games powered by quantum preparation contextuality
Prabuddha Roy, A. K. Pan
The parity-oblivious random-access-code (PORAC) is a class of communication games involving a sender (Alice) and a receiver (Bob). In such games, Alice's amount of communication to…
Device-independent self-testing of unsharp measurements
Prabuddha Roy, A. K. Pan
Semi-device-independent certification of an unsharp instrument has recently been demonstrated [New J. Phys. 21, 083034 (2019)] based on the sequential sharing of quantum advantages…
Quantum violation of trivial and non-trivial preparation non-contextuality: Nonlocality and Steering
Prabuddha Roy, A. K. Pan
This paper illustrates a direct connection between quantum steering and non-trivial preparation contextuality. In two party-two measurement per party-two outcomes per measurement $…
Path Predictability and Quantum Coherence in Multi-Slit Interference
Prabuddha Roy, Tabish Qureshi
In an asymmetric multislit interference experiment, a quanton is more likely to pass through certain slits than some others. In such a situation one may be able to predict which sl…