Results 41 to 50 of about 41,273 (213)

Incompatibility in Multi-Parameter Quantum Metrology with Fermionic Gaussian States

open access: yesProceedings, 2019
In this article we derive a closed form expression for the incompatibility condition in multi-parameter quantum metrology when the reference states are Fermionic Gaussian states.
Angelo Carollo   +2 more
doaj   +1 more source

Hyperspectral Chemical Imaging of Single Bacterial Cell Structure by Raman Spectroscopy and Machine Learning

open access: yesApplied 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

Quantum metrology in local dissipative environments

open access: yesNew 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

Quantum Metrology Assisted by Abstention [PDF]

open access: yesPhysical Review Letters, 2013
Some typos ...
Gendra, B.   +4 more
openaire   +3 more sources

QMetrology from QCosmology: Study with entangled two qubit open quantum system in De Sitter space

open access: yesSciPost 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

Quantum Metrology with Cold Atoms

open access: yes, 2013
Quantum metrology is the science that aims to achieve precision measurements by making use of quantum principles. Attribute to the well-developed techniques of manipulating and detecting cold atoms, cold atomic systems provide an excellent platform for ...
Huang, Jiahao   +3 more
core   +1 more source

Multiparameter Gaussian quantum metrology

open access: yesPhysical Review A, 2018
14 pages, 3 figures; expanded and updated; to appear in Physical Review ...
Nichols, Rosanna   +3 more
openaire   +2 more sources

Entanglement-enhanced quantum metrology in a noisy environment

open access: yes, 2018
Quantum metrology overcomes standard precision limits and plays a central role in science and technology. Practically it is vulnerable to imperfections such as decoherence.
Bian, Zhihao   +6 more
core   +1 more source

Nonlinear metrology with a quantum interface

open access: yes, 2010
We describe nonlinear quantum atom-light interfaces and nonlinear quantum metrology in the collective continuous variable formalism. We develop a nonlinear effective Hamiltonian in terms of spin and polarization collective variables and show that model ...
Koschorreck M   +4 more
core   +1 more source

Entanglement and phase properties of noisy N00N states

open access: yes, 2015
Quantum metrology and quantum information necessitate a profound study of suitable states. Attenuations induced by free-space communication links or fluctuations in the generation of such states limit the quantum enhancement in possible applications. For
Bohmann, M., Sperling, J., Vogel, W.
core   +1 more source

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