Fast state tomography with optimal error bounds

M Guţă, J Kahn, R Kueng, JA Tropp - Journal of Physics A …, 2020 - iopscience.iop.org
Projected least squares is an intuitive and numerically cheap technique for quantum state
tomography: compute the least-squares estimator and project it onto the space of states. The …

ROP: Matrix recovery via rank-one projections

TT Cai, A Zhang - 2015 - projecteuclid.org
ROP: Matrix recovery via rank-one projections Page 1 The Annals of Statistics 2015, Vol. 43, No.
1, 102–138 DOI: 10.1214/14-AOS1267 © Institute of Mathematical Statistics, 2015 ROP: MATRIX …

Optimal large-scale quantum state tomography with Pauli measurements

T Cai, D Kim, Y Wang, M Yuan, HH Zhou - 2016 - projecteuclid.org
Quantum state tomography aims to determine the state of a quantum system as represented
by a density matrix. It is a fundamental task in modern scientific studies involving quantum …

Pseudo-Bayesian quantum tomography with rank-adaptation

TT Mai, P Alquier - Journal of Statistical Planning and Inference, 2017 - Elsevier
Quantum state tomography, an important task in quantum information processing, aims at
reconstructing a state from prepared measurement data. Bayesian methods are recognized …

Rank-based model selection for multiple ions quantum tomography

M Guţă, T Kypraios, I Dryden - New Journal of Physics, 2012 - iopscience.iop.org
The statistical analysis of measurement data has become a key component of many
quantum engineering experiments. As standard full state tomography becomes unfeasible …

Bayesian methods for low-rank matrix estimation: short survey and theoretical study

P Alquier - … Learning Theory: 24th International Conference, ALT …, 2013 - Springer
The problem of low-rank matrix estimation recently received a lot of attention due to
challenging applications. A lot of work has been done on rank-penalized methods [1] and …

Quantum tomography by regularized linear regressions

B Mu, H Qi, IR Petersen, G Shi - Automatica, 2020 - Elsevier
In this paper, we study extended linear regression approaches for quantum state
tomography based on regularization techniques. For unknown quantum states represented …

Spectral thresholding quantum tomography for low rank states

C Butucea, M Guţă, T Kypraios - New Journal of Physics, 2015 - iopscience.iop.org
The estimation of high dimensional quantum states is an important statistical problem arising
in current quantum technology applications. A key example is the tomography of multiple …

Estimation of low rank density matrices: bounds in schatten norms and other distances

D Xia, V Koltchinskii - 2016 - projecteuclid.org
Let S_m be the set of all m*m density matrices (Hermitian positively semi-definite matrices of
unit trace). Consider a problem of estimation of an unknown density matrix ρ∈S_m based …

Low-rank approximation pursuit for matrix completion

AB Xu, D Xie - Mechanical Systems and Signal Processing, 2017 - Elsevier
We consider the matrix completion problem that aims to construct a low rank matrix X that
approximates a given large matrix Y from partially known sample data in Y. In this paper we …