Results 21 to 30 of about 16,532,770 (297)
Experimental demonstration of adversarial examples in learning topological phases
Nature Communications, 2022 Machine learning has been applied to problems in condensed matter physics, but its performance in an experimental setting needs testing. Zhang et al. study the effects of adversarial perturbations on a neural-network-based topological phase classifier ...
Huili Zhang +9 more
doaj +1 more source
Experimental unsupervised learning of non-Hermitian knotted phases with solid-state spins
npj Quantum Information, 2022 Non-Hermiticity has widespread applications in quantum physics. It brings about distinct topological phases without Hermitian counterparts, and gives rise to the fundamental challenge of phase classification. Here, we report an experimental demonstration
Yefei Yu +7 more
doaj +1 more source
Experimental demonstration of coherence flow in PT- and anti-PT-symmetric systems
Communications Physics, 2021 The gain and loss inherent in non-Hermitian quantum systems can modify the flow of coherence between subsystems, which may be lost or recovered from the environment.
Yu-Liang Fang +7 more
doaj +1 more source
Quantum computation and quantum information [PDF]
International Journal of Parallel, Emergent and Distributed Systems, 2006 The paper is intended to be a survey of all the important aspects and results that have shaped the field of quantum computation and quantum information. The reader is first familiarized with those features and principles of quantum mechanics providing a more efficient and secure information processing.
Marius Nagy, Selim G. Akl
openaire +2 more sources
Local Invariance of Divergence-Based Quantum Information Measures. [PDF]
Entropy (Basel)Quantum information quantities, such as mutual information and entropies, are essential for characterizing quantum systems and protocols in quantum information science.
Popp C, Sutter TC, Hiesmayr BC.
europepmc +2 more sources
Quantum simulation for topological Euler insulators
Communications Physics, 2022 A new class of topological systems has been recently discovered, it has been dubbed the Euler insulator and can manifest in two-dimensional systems. The authors present an experimental implementation for realizing the Euler insulator with 171Yb+ ion ...
Wending Zhao +11 more
doaj +1 more source
Infrared Quantum Information [PDF]
Physical Review Letters, 2017 We discuss information-theoretic properties of low-energy photons and gravitons in the S-matrix. Given an incoming n-particle momentum eigenstate, we demonstrate that unobserved soft photons decohere nearly all outgoing momentum superpositions of charged particles, while the universality of gravity implies that soft gravitons decohere nearly all ...
Carney, Daniel +3 more
openaire +3 more sources
Acta Physica Polonica A, 2021 This review article is based on a lecture on quantum information given at the XLVI Extraordinary Congress of Polish Physicists, Warsaw, Poland, October 16-18, 2020, on the occasion of the centenary of the Polish Physical Society. 37 pages, 4 figures.
openaire +2 more sources
Experimental investigation of wave-particle duality relations in asymmetric beam interference
npj Quantum Information, 2022 Wave-particle duality relations are fundamental for quantum physics. Previous experimental studies of duality relations mainly focus on the quadratic relation D 2 + V 2 ≤ 1, based on symmetric beam interference, while a linear form of the duality ...
Dong-Xu Chen +6 more
doaj +1 more source
Quantum information transmission [PDF]
Quantum Information Processing, 2012 We present a scheme of quantum information transmission, which transmits the quantum information contained in a single qubit via the quantum correlation shared by two parties (a two-qubit channel), whose quantum discord is non-zero. We demonstrate that the quantum correlation, which may have no entanglement, is sufficient to transmit the information of
Lei Wang +3 more
openaire +3 more sources