activity
20212026
most citedCommuting Local Hamiltonians Beyond 2D

2 citations · 4 across the 5 of their papers we have counts for

collaborators

7 papers

quant-ph2026

Anti-symmetrization is cheap and useful

Adam Bene Watts, John Bostanci, Matthias C. Caro +3

We consider the computational task of anti-symmetrization of an unknown mixed quantum state: Given iid copies of a rank- qudit state $ρ=\sum_{i=1}^r λ_i |φ_i\rangle\!\langleφ_i|…

quant-ph2026

A quantum oracle separation between QMA(2) and QMA

John Bostanci, Sabee Grewal, Jonas Haferkamp +4

We find a quantum oracle relative to which . As a consequence, we resolve the no-disentanglers conjecture of Watrous: for every , any $(ε,…

quant-ph2026

Separating Quantum and Classical Advice with Good Codes

John Bostanci, Andrew Huang, Vinod Vaikuntanathan

We show an unconditional classical oracle separation between the class of languages that can be verified using a quantum proof () and the class of languages that can…

quant-ph2024★ 1 cited

Learning the closest product state

Ainesh Bakshi, John Bostanci, William Kretschmer +5

We study the problem of finding a (pure) product state with optimal fidelity to an unknown -qubit quantum state , given copies of . This is a basic instance of a fundament…

quant-ph2024★ 2 cited

Commuting Local Hamiltonians Beyond 2D

John Bostanci, Yeongwoo Hwang

Commuting local Hamiltonians provide a testing ground for studying many of the most interesting open questions in quantum information theory, including the quantum PCP conjecture a…

quant-ph2022

Quantum Event Learning and Gentle Random Measurements

Adam Bene Watts, John Bostanci

We prove the expected disturbance caused to a quantum system by a sequence of randomly ordered two-outcome projective measurements is upper bounded by the square root of the probab…

quant-ph2021★ 1 cited

Finding the disjointness of stabilizer codes is NP-complete

John Bostanci, Aleksander Kubica

The disjointness of a stabilizer code is a quantity used to constrain the level of the logical Clifford hierarchy attainable by transversal gates and constant-depth quantum circuit…