1.8k citations · 2.6k across the 60 of their papers we have counts for
12 papers · 1 filter
Quantum Policy Gradient in Reproducing Kernel Hilbert Space
David M. Bossens, Kishor Bharti, Jayne Thompson
Parametrised quantum circuits offer expressive and data-efficient representations for machine learning. Due to quantum states residing in a high-dimensional Hilbert space, parametr…
Simple Construction of Qudit Floquet Codes on a Family of Lattices
Andrew Tanggara, Mile Gu, Kishor Bharti
Dynamical quantum error-correcting codes (QECC) offer wider possibilities in how one can protect logical quantum information from noise and perform fault-tolerant quantum computati…
Local contextuality-based self-tests are sufficient for randomness expansion secure against quantum adversaries
Jaskaran Singh, Cameron Foreman, Kishor Bharti +1
In quantum cryptography, secure randomness expansion involves using a short private string of random bits to generate a longer one, even in the presence of an adversary who may hav…
Pseudorandom density matrices
Nikhil Bansal, Wai-Keong Mok, Kishor Bharti +2
Pseudorandom states (PRSs) are state ensembles that cannot be efficiently distinguished from Haar random states. However, the definition of PRSs has been limited to pure states and…
Communication with Quantum Catalysts
Yuqi Li, Junjing Xing, Dengke Qu +8
Communication is essential for advancing science and technology. Quantum communication, in particular, benefits from the use of catalysts. During the communication process, these c…
Teleportation with Embezzling Catalysts
Junjing Xing, Yuqi Li, Dengke Qu +7
Quantum teleportation is the process of transferring quantum information using classical communication and pre-shared entanglement. This process can benefit from the use of catalys…
Multivariate Bicycle Codes
Lukas Voss, Sim Jian Xian, Tobias Haug +1
Quantum error correction suppresses noise in quantum systems to allow for high-precision computations. In this work, we introduce Multivariate Bicycle (MB) Quantum Low-Density Pari…
Strategic Code: A Unified Spatio-Temporal Framework for Quantum Error-Correction
Andrew Tanggara, Mile Gu, Kishor Bharti
Quantum error-correcting code (QECC) is the central ingredient in fault-tolerant quantum information processing. An emerging paradigm of dynamical QECC shows that one can robustly…
Resource-Efficient Hybrid Quantum-Classical Simulation Algorithm
Chong Hian Chee, Daniel Leykam, Adrian M. Mak +2
Digital quantum computers promise exponential speedups in performing quantum time-evolution, providing an opportunity to simulate quantum dynamics of complex systems in physics and…
A computational test of quantum contextuality, and even simpler proofs of quantumness
Atul Singh Arora, Kishor Bharti, Alexandru Cojocaru +1
Bell non-locality is a fundamental feature of quantum mechanics whereby measurements performed on "spatially separated" quantum systems can exhibit correlations that cannot be unde…
Classically Spoofing System Linear Cross Entropy Score Benchmarking
Andrew Tanggara, Mile Gu, Kishor Bharti
In recent years, several experimental groups have claimed demonstrations of ``quantum supremacy'' or computational quantum advantage. A notable first claim by Google Quantum AI rev…
Estimation of Hamiltonian parameters from thermal states
Luis Pedro García-Pintos, Kishor Bharti, Jacob Bringewatt +4
We upper- and lower-bound the optimal precision with which one can estimate an unknown Hamiltonian parameter via measurements of Gibbs thermal states with a known temperature. The…