2019/11/30 by Yusuf Turek
Computer Science · Physics and Astronomy · #Computer science #Density matrix #Matrix (chemical analysis) #Measure (data warehouse) #Observable #Operator (biology) #Physics #Quantum #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum entanglement #Quantum mechanics #Quantum state #Quantum system #Quantum tomography #quant-ph
paper · pdf · open access · doi:10.1088/2399-6528/ab9938
published in Journal of Physics Communications 4(7), 075007 (IOP Publishing) · 8pages
arxiv created 2020/01/05 · openalex publication_date 2020/06/03 · arxiv updated 2022/02/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Abstract In general, the state of a quantum system represented by the density operator and its determination is a fundamental problem in quantum theory. In this study, two theoretical methods such as using postselected measurement characterized by modular value and sequential measurements of triple products of complementary observables to direct measurement of matrix elements of density operator of a two photon entangled quantum state are introduced. The similarity and possible feasibilities of those two methods are discussed by considering the previous theoretical and experimental works.