61 citations · 133 across the 8 of their papers we have counts for
10 papers
Graph-Theoretic Framework for Self-Testing in Bell Scenarios
Kishor Bharti, Maharshi Ray, Zhen-Peng Xu +3
Quantum self-testing is the task of certifying quantum states and measurements using the output statistics solely, with minimal assumptions about the underlying quantum system. It…
Quantum-classical algorithms for skewed linear systems with optimized Hadamard test
Bujiao Wu, Maharshi Ray, Liming Zhao +2
The solving of linear systems provides a rich area to investigate the use of nearer-term, noisy, intermediate-scale quantum computers. In this work, we discuss hybrid quantum-class…
Graph-theoretic approach to dimension witnessing
Maharshi Ray, Naresh Goud Boddu, Kishor Bharti +2
A fundamental problem in quantum computation and quantum information is finding the minimum quantum dimension needed for a task. For tasks involving state preparation and measureme…
Quantum algorithms for hedging and the learning of Ising models
Patrick Rebentrost, Yassine Hamoudi, Maharshi Ray +3
A paradigmatic algorithm for online learning is the Hedge algorithm by Freund and Schapire. An allocation into different strategies is chosen for multiple rounds and each round inc…
Local certification of programmable quantum devices of arbitrary high dimensionality
Kishor Bharti, Maharshi Ray, Antonios Varvitsiotis +2
The onset of the era of fully-programmable error-corrected quantum computers will be marked by major breakthroughs in all areas of science and engineering. These devices promise to…
Non-classical Correlations in n-Cycle Setting
Kishor Bharti, Maharshi Ray, Leong Chuan Kwek
We explore non-classical correlations in n-cycle setting. In particular, we focus on correlations manifested by Kochen-Specker-Klyachko box (KS box), scenarios involving n-cycle no…
Robust self-testing of quantum systems via noncontextuality inequalities
Kishor Bharti, Maharshi Ray, Antonios Varvitsiotis +3
Characterising unknown quantum states and measurements is a fundamental problem in quantum information processing. In this Letter, we provide a novel scheme to self-test local quan…
Strategies for quantum races
Troy Lee, Maharshi Ray, Miklos Santha
We initiate the study of quantum races, games where two or more quantum computers compete to solve a computational problem. While the problem of dueling algorithms has been studied…
On the Security of Semi Device Independent QKD protocols
Anubhav Chaturvedi, Maharshi Ray, Ryszard Veynar +1
While fully device-independent security in (BB84-like) prepare and measure Quantum Key Distribution (QKD) is impossible, it can be guaranteed against individual attacks in a semi d…
Sequential Quantum Secret Sharing in a Noisy Environment aided with Weak Measurements
Maharshi Ray, Sourav Chatterjee, Indranil Chakrabarty
In this work we give a -threshold protocol for sequential secret sharing of quantum information for the first time. By sequential secret sharing we refer to a situation wher…