Optimizing shadow tomography with generalized measurements

HC Nguyen, JL Bönsel, J Steinberg, O Gühne - Physical Review Letters, 2022 - APS
Advances in quantum technology require scalable techniques to efficiently extract
information from a quantum system. Traditional tomography is limited to a handful of qubits …

Riemannian geometry and automatic differentiation for optimization problems of quantum physics and quantum technologies

IA Luchnikov, ME Krechetov… - New Journal of …, 2021 - iopscience.iop.org
Optimization with constraints is a typical problem in quantum physics and quantum
information science that becomes especially challenging for high-dimensional systems and …

Operational dynamic modeling transcending quantum and classical mechanics

DI Bondar, R Cabrera, RR Lompay, MY Ivanov… - Physical review …, 2012 - APS
We introduce a general and systematic theoretical framework for operational dynamic
modeling (ODM) by combining a kinematic description of a model with the evolution of the …

Practical adaptive quantum tomography

C Granade, C Ferrie, ST Flammia - New Journal of Physics, 2017 - iopscience.iop.org
We introduce a fast and accurate heuristic for adaptive tomography that addresses many of
the limitations of prior methods. Previous approaches were either too computationally …

Experimental adaptive Bayesian tomography

KS Kravtsov, SS Straupe, IV Radchenko… - Physical Review A …, 2013 - APS
We report an experimental realization of an adaptive quantum state tomography protocol.
Our method takes advantage of a Bayesian approach to statistical inference and is naturally …

Wavefront sensing reveals optical coherence

B Stoklasa, L Motka, J Rehacek, Z Hradil… - Nature …, 2014 - nature.com
Wavefront sensing is a set of techniques providing efficient means to ascertain the shape of
an optical wavefront or its deviation from an ideal reference. Owing to its wide dynamical …

Optimal two-qubit tomography based on local and global measurements: Maximal robustness against errors as described by condition numbers

A Miranowicz, K Bartkiewicz, J Peřina Jr, M Koashi… - Physical Review A, 2014 - APS
We present an error analysis of various tomographic protocols based on the linear inversion
for the reconstruction of an unknown two-qubit state. We solve the problem of finding a …

Machine learning methods in quantum computing theory

DV Fastovets, YI Bogdanov, BI Bantysh… - … Conference on Micro …, 2019 - spiedigitallibrary.org
Classical machine learning theory and theory of quantum computations are among of the
most rapidly developing scientific areas in our days. In recent years, researchers …

Adaptive quantum tomography

SS Straupe - JETP letters, 2016 - Springer
We provide a review of the experimental and theoretical research in the field of quantum
tomography with an emphasis on recently developed adaptive protocols. Several statistical …

Post-perovskite CaIrO 3: A j= 1/2 quasi-one-dimensional antiferromagnet

NA Bogdanov, VM Katukuri, H Stoll… - Physical Review B …, 2012 - APS
The 5 d 5 iridate CaIrO 3 is isostructural with the post-perovskite phase of MgSiO 3, recently
shown to occur under extreme pressure in the lower Earth's mantle. It therefore serves as an …