22 citations · 135 across the 31 of their papers we have counts for
5 papers · 1 filter
Any gate of a quantum computer can be certified device-independently
Shubhayan Sarkar
Device-independent (DI) certification allows the verification of quantum systems based solely on observed statistics, without assumptions about their internal structure. While self…
Topologically noise robust network steering without inputs
Dhruv Baheti, Shubhayan Sarkar
Quantum networks with independent sources allow observing quantum nonlocality or steering with just a single measurement per node of the network, or without any inputs. Inspired by…
Gap between quantum theory based on real and complex numbers is arbitrarily large
Shubhayan Sarkar, David Trillo, Marc Olivier Renou +1
Quantum Information Theory, the standard formalism used to represent information contained in quantum systems, is based on complex Hilbert spaces (CQT). It was recently shown that…
Detecting entanglement in any measurement using quantum networks
Shubhayan Sarkar
Entanglement is a key resource to demonstrate quantum advantage over classical strategies. Entanglement in quantum states is one of the most well-explored areas in quantum physics.…
Using quantum nonlocality for device-independent confirmation of relativistic effects
Shubhayan Sarkar
Synchronizing clocks to measure time is a fundamental process underpinning every practical communication task from GPS to parallel computation. However, as the current protocols ar…