3 papers
quant-ph2026
Algorithmic Aspects of the Fermi--Hubbard Model
Ainesh Bakshi, Ankur Moitra, Xinyu Tan
Preparing Gibbs states on a quantum computer offers a way to computationally probe how microscopic interactions give rise to macroscopic phenomena at finite temperature. However, a…
quant-ph2025
Haar random codes attain the quantum Hamming bound, approximately
Fermi Ma, Xinyu Tan, John Wright
We study the error correcting properties of Haar random codes, in which a -dimensional code space is chosen at random from the Haar distr…
quant-ph2025
Beating full state tomography for unentangled spectrum estimation
Angelos Pelecanos, Xinyu Tan, Ewin Tang +1
How many copies of a mixed state are needed to learn its spectrum? To date, the best known algorithms for spectrum estimation require as many copies…