Semidefinite programming relaxations for quantum correlations

A Tavakoli, A Pozas-Kerstjens, P Brown… - Reviews of Modern Physics, 2024 - APS
Semidefinite programs are convex optimization problems involving a linear objective
function and a domain of positive-semidefinite matrices. Over the past two decades, they …

The quantum illumination story

JH Shapiro - IEEE Aerospace and Electronic Systems …, 2020 - ieeexplore.ieee.org
Superposition and entanglement, the quintessential characteristics of quantum physics,
have been shown to provide communication, computation, and sensing capabilities that go …

Optimum mixed-state discrimination for noisy entanglement-enhanced sensing

Q Zhuang, Z Zhang, JH Shapiro - Physical review letters, 2017 - APS
Quantum metrology utilizes nonclassical resources, such as entanglement or squeezed
light, to realize sensors whose performance exceeds that afforded by classical-state …

Strong quantum nonlocality without entanglement

S Halder, M Banik, S Agrawal, S Bandyopadhyay - Physical review letters, 2019 - APS
Quantum nonlocality is usually associated with entangled states by their violations of Bell-
type inequalities. However, even unentangled systems, whose parts may have been …

Local indistinguishability of orthogonal product states

ZC Zhang, F Gao, Y Cao, SJ Qin, QY Wen - Physical Review A, 2016 - APS
In the general bipartite quantum system m⊗ n (m, n≥ 3), Y.-L. Wang [Phys. Rev. A 92,
032313 (2015)] PLRAAN 1050-2947 10.1103/PhysRevA. 92.032313 presented 3 (m+ n)− 9 …

Construction of nonlocal multipartite quantum states

ZC Zhang, KJ Zhang, F Gao, QY Wen, CH Oh - Physical Review A, 2017 - APS
For general bipartite quantum systems, many sets of locally indistinguishable orthogonal
product states have been constructed so far. Here, we first present a general method to …

Quantum-enhanced barcode decoding and pattern recognition

L Banchi, Q Zhuang, S Pirandola - Physical Review Applied, 2020 - APS
Quantum hypothesis testing is one of the most fundamental problems in quantum
information theory, with crucial implications in areas like quantum sensing, where it has …

Limitations on separable measurements by convex optimization

S Bandyopadhyay, A Cosentino… - IEEE Transactions …, 2015 - ieeexplore.ieee.org
We prove limitations on LOCC and separable measurements in bipartite state discrimination
problems using techniques from convex optimization. Specific results that we prove include …

Distinguishability of quantum states by positive operator-valued measures with positive partial transpose

N Yu, R Duan, M Ying - IEEE Transactions on Information …, 2014 - ieeexplore.ieee.org
We study the distinguishability of bipartite quantum states by positive operator-valued
measures with positive partial transpose (PPT POVMs). The contributions of this paper …

Entanglement as a resource for local state discrimination in multipartite systems

S Bandyopadhyay, S Halder, M Nathanson - Physical Review A, 2016 - APS
We explore the question of using an entangled state as a universal resource for
implementing quantum measurements by local operations and classical communication …