Results 41 to 50 of about 1,306,509 (289)

Enhancing Phase Measurement by a Factor of Two in the Stokes Correlation

open access: yesEngineering Proceedings, 2023
Phase loss is a typical problem in the optical domain, and optical detectors only measure the amplitude distribution of a signal without its phase. However, an optimal phase is desired in a variety of practical applications, such as optical metrology ...
Amit Yadav   +3 more
doaj   +1 more source

Asymmetry and coherence weight of quantum states

open access: yes, 2018
The asymmetry of quantum states is an important resource in quantum information processing tasks such as quantum metrology and quantum communication. In this paper, we introduce the notion of $asymmetry~weight$ --- an operationally motivated asymmetry ...
Anand, Namit, Bu, Kaifeng, Singh, Uttam
core   +1 more source

Polynomial measure of coherence [PDF]

open access: yes, 2017
Coherence, the superposition of orthogonal quantum states, is indispensable in various quantum processes. Inspired by the polynomial invariant for classifying and quantifying entanglement, we first define polynomial coherence measure and systematically ...
Ma, Xiongfeng   +3 more
core   +2 more sources

Coherent Overrings [PDF]

open access: yesCanadian Mathematical Bulletin, 1979
In the study of particular categories of integral domains, it has proved useful to know which overrings of the domains of interest lie within the category, and indeed whether all such overrings do. (Recall: an overring of R is a ring T with R ⊆ T ⊆ quotient field of R.) Two classes of domains classically studied in this setting are Prüfer domains and ...
openaire   +2 more sources

Holography with Incoherent Light

open access: yesEngineering Proceedings, 2023
Conventional digital holography uses the technique of combining two coherent light fields and the numerical reconstruction of the recorded hologram leads to the object amplitude and phase information.
Akanksha Gautam   +5 more
doaj   +1 more source

Topological Properties of Spatial Coherence Function

open access: yes, 2007
Topology of the spatial coherence function is considered in details. The phase singularity (coherence vortices) structures of coherence function are classified by Hopf index and Brouwer degree in topology.
Dennis M R   +9 more
core   +1 more source

Coherent transport [PDF]

open access: yesComptes Rendus de l'Académie des Sciences - Series IV - Physics, 2001
Minor typos corrected. Proceedings of the `Euroconference on Atom Optics and Interferometry' (Cargese, France 26-29 july 2000). Accepted for publication in C. R. Acad. Sci.
openaire   +3 more sources

Imaging with Coherent X-rays: From the Early Synchrotron Tests to SYNAPSE

open access: yesJournal of Imaging, 2021
The high longitudinal and lateral coherence of synchrotron X-rays sources radically transformed radiography. Before them, the image contrast was almost only based on absorption.
Giorgio Margaritondo, Yeukuang Hwu
doaj   +1 more source

Energy Cost of Creating Quantum Coherence

open access: yes, 2016
We consider the physical situations where the resource theories of coherence and thermodynamics play competing roles. In particular, we study the creation of quantum coherence using unitary operations with limited thermodynamic resources.
Bhattacharya, Samyadeb   +3 more
core   +1 more source

Frozen Quantum Coherence [PDF]

open access: yesPhysical Review Letters, 2015
6+4 pages, 1 figure; close to published ...
Bromley, Thomas R.   +2 more
openaire   +4 more sources

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