14 citations · 18 across the 8 of their papers we have counts for
9 papers
Higher rates for semi-device-independent randomness expansion by recycling input randomness
Rutvij Bhavsar, Hamid Tebyanian, Roger Colbeck
Although quantum random number generators rely on the inherent indeterminism of quantum mechanics, ensuring that the numbers produced are secure remains a significant challenge. We…
Entropy Bounds via Hypothesis Testing and Its Applications to Two-Way Key Distillation in Quantum Cryptography
Rutvij Bhavsar, Junguk Moon, Joonwoo Bae
Quantum key distribution (QKD) achieves information-theoretic security, without relying on computational assumptions, by distributing quantum states. To establish secret bits, two…
POVM generated quantum trajectories without stochastic differential equations
Rutvij Bhavsar, N. D. Hari Dass
In this paper we examine the issue of quantum trajectories generated by QND-POVM's on {\it single} copies of unknown states. After an introduction to various aspects of quantum mea…
Composable framework for device-independent state certification
Rutvij Bhavsar, Lewis Wooltorton, Joonwoo Bae
Certifying a quantum state in a device-independent (DI) manner, in which no trust is placed on the internal workings of any physical components, is a fundamental task bearing vario…
Comment on a no-go theorem for -ontic models
Laurens Walleghem, Shashaank Khanna, Rutvij Bhavsar
In a recent paper [Carcassi, Oldofredi and Aidala, Found Phys 54, 14 (2024)] it is claimed that the whole Harrigan--Spekkens framework of ontological models is inconsistent with qu…
Enhancing key rates of QKD protocol by Coincidence Detection
Tanya Sharma, Rutvij Bhavsar, Jayanth Ramakrishnan +4
In theory, quantum key distribution (QKD) provides unconditional security; however, its practical implementations are susceptible to exploitable vulnerabilities. This investigation…
Improvements on Device Independent and Semi-Device Independent Protocols of Randomness Expansion
Rutvij Bhavsar
To generate genuine random numbers, random number generators based on quantum theory are essential. However, ensuring that the process used to produce randomness meets desired secu…
Improved device-independent randomness expansion rates using two sided randomness
Rutvij Bhavsar, Sammy Ragy, Roger Colbeck
A device-independent randomness expansion protocol aims to take an initial random string and generate a longer one, where the security of the protocol does not rely on knowing the…
Machine Learning Modeling of Wigner Intracule Functionals for Two Electrons in One Dimension
Rutvij Vihang Bhavsar, Raghunathan Ramakrishnan
In principle, many-electron correlation energy can be precisely computed from a reduced Wigner distribution function () thanks to a universal functional transformation…