Results 41 to 50 of about 9,545 (228)
Memristive Devices for Quantum Metrology [PDF]
, 2020 As a consequence of the redefinition of the International System of Units (SI), where units are defined in terms of fundamental physical constants, memristive devices represent a promising platform for quantum metrology. Coupling ionics with electronics,
Federico Ferrarese Lupi +11 more
core +1 more source
Differential Evolution for Many-Particle Adaptive Quantum Metrology [PDF]
, 2013 We devise powerful algorithms based on differential evolution for adaptive many-particle quantum metrology. Our new approach delivers adaptive quantum metrology policies for feedback control that are orders-of-magnitude more efficient and surpass the few-
Crosnier, C. +3 more
core +1 more source
Quantum metrology in local dissipative environments
New Journal of Physics, 2017 Quantum metrology allows us to attain a measurement precision that surpasses the classically achievable limit by using quantum characters. The metrology precision is raised from the standard quantum limit (SQL) to the Heisenberg limit (HL) by using ...
Yuan-Sheng Wang, Chong Chen, Jun-Hong An
doaj +1 more source
Applied Sciences, 2021 In this work, biomolecules, such as membrane proteins, lipids, and DNA, were identified and their spatial distribution was mapped within a single Escherichia coli cell by Raman hyperspectral imaging.
Giulia Barzan +5 more
doaj +1 more source
Compatibility in multiparameter quantum metrology [PDF]
Physical Review A, 2016 v2: Corrected form of the Holevo Cramer-Rao bound, other minor ...
Ragy, Sammy Hany +2 more
openaire +3 more sources
QMetrology from QCosmology: Study with entangled two qubit open quantum system in De Sitter space
SciPost Physics Core, 2021 In this paper, our prime objective is to apply the techniques of parameter estimation theory and the concept of Quantum Metrology in the form of Fisher Information to investigate the role of certain physical quantities in the open quantum dynamics of ...
Sayantan Choudhury, Satyaki Chowdhury, Nitin Gupta, Abinash Swain
doaj +1 more source
Exponentially Enhanced Quantum Metrology [PDF]
Physical Review Letters, 2008 4 pages, 1 postscript figure ; typos ...
Roy, S. M., Braunstein, Samuel L.
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Channel Simulation in Quantum Metrology [PDF]
, 2018 In this review we discuss how channel simulation can be used to simplify the most general protocols of quantum parameter estimation, where unlimited entanglement and adaptive joint operations may be employed.
Spedalieri, Gaetana +9 more
core +1 more source
Loschmidt echo for quantum metrology [PDF]
Physical Review A, 2016 We propose a versatile Loschmidt echo protocol to detect and quantify multiparticle entanglement. It allows us to extract the quantum Fisher information for arbitrary pure states, and finds direct application in quantum metrology. In particular, the protocol applies to states that are generally difficult to characterize, as non-Gaussian states, and ...
Macri T, Smerzi A, Pezze L
openaire +3 more sources
Chiral Phase Change Nanomaterials
Advanced Functional Materials, EarlyView.This work demonstrates reversible, non‐volatile phase transitions in chiral Ge2${\rm Ge}_2$Sb2${\rm Sb}_2$Te5${\rm Te}_5$ (GST) nanohelices for high‐speed optical modulation of chirality and dynamic control of the state of polarization (SOP). The chiral nanostructures are fabricated using a highly directional, wafer‐scale physical vapor deposition ...
Joshua A. Burrow +11 more
wiley +1 more source