PRACQSYS 2018: Principles and Applications of Control in Quantum Systems

Collection PRACQSYS 2018: Principles and Applications of Control in Quantum Systems

Organizer(s) Brion, Etienne ; Diamanti, Eleni ; Ourjoumtsev, Alexei ; Rouchon, Pierre

Date(s) 02/07/2018 - 06/07/2018

linked URL https://sites.google.com/view/mcqs2018/pracqsys-2018

00:00:00 / 00:00:00

18 29

Limits on spectral resolution measurements by quantum probes for nano NMR

By Alex Retzker

The limits of frequency resolution in nano NMR experiments have been discussed extensively in recent years. It is believed that there is a crucial difference between the ability to resolve a few frequencies and the precision of estimating a single one. Whereas the efficiency of single frequency estimation gradually increases with the square root of the number of measurements, the ability to resolve two frequencies is limited by the specific time scale of the probe and cannot be compensated for by extra measurements. In this talk I will show that the relationship between these quantities is more subtle and both are only limited by the Cramer-Rao bound of a single frequency estimation. The talk is based on [1, 2].

Information about the video

Date of recording 04/07/2018
Date of publication 13/07/2018
Institution IHP
Licence CC BY-NC-ND
Format MP4

Bibliography

[1] Schmitt, S. et al. Submillihertz magnetic spectroscopy performedwith a nanoscale quantumsensor. Science 356, 832–837 (May 2017).
[2] Rotem, A. et al. Limits on spectral resolution measurements by quantum probes. arXiv: 1707. 01902v1

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All the collection videos

58:55

published on July 6, 2018

Neural networks discovering quantum error correction strategies from scratch

By Florian Marquardt

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published on July 6, 2018

The vacuum-gap transmon qubit: ultra-strong light matter coupling and insights into the physics of the Lamb shift

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By Hendrik Bluhm

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Controlling a circular Rydberg state quantum simulator

By Jean-Michel Raimond

50:22

published on July 10, 2018

Towards low-complexity measurement-based feedback control

By Alain Sarlette

43:16

published on July 10, 2018

Dynamical large deviations and open quantum systems

By Juan Garrahan

58:52

published on July 10, 2018

Building large controlled quantum systems with individual atoms

By Sylvain Schwartz

01:12:15

published on July 10, 2018

Public Conference 1 - K. Mølmer & K. Helweg

By Klaus Mølmer

52:51

published on July 10, 2018

Mesoscopic quantum electrodynamics with carbon nanotubes

By Takis Kontos

56:30

published on July 10, 2018

Fast, high fidelity control in spectrally crowded systems

By Sophia Economou

57:51

published on July 11, 2018

Measurement signals, quantum correlation functions and quantum trajectories

By Klaus Mølmer

48:03

published on July 11, 2018

Experimental optical phase measurement at the exact Heisenberg limit

By Howard M. Wiseman

47:29

published on July 11, 2018

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By Lorenza Viola

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Public Conference 2 - M. Devoret, The "observer effect" in quantum mechanic

By Michel Devoret

49:18

published on July 11, 2018

Time-domain multiplexed measurement-based quantum computing for large-scale optical quantum computing

By Akira Furusawa

43:56

published on July 16, 2018

Spectroscopy and spin squeezing using weak measurementspin squeezing using weak measurement

By Yanhong Xiao

47:23

published on July 13, 2018

Catching and reversing a quantum jump mid-flight

By Michel Devoret

44:57

published on July 13, 2018

Limits on spectral resolution measurements by quantum probes for nano NMR

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45:01

published on July 13, 2018

Hybrid quantum/classical computing on a 19-qubit processor based on parametrically-activated entangling gates

By Nicolas Didier

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published on July 13, 2018

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published on July 13, 2018

Seize the Moments: Enhancing Moment Estimation for Subdiffraction Incoherent Imaging

By Mankei Tsang

57:04

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Efficient reservoir engineering of complex bosonic states

By Aashish Clerk

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On the optimal control of a Kohn-Sham quantum model

By Alfio Borzi

42:47

published on May 16, 2018

Reconfigurable optical implementation of quantum complex networks

By Valentina Parigi

46:25

published on July 16, 2018

Data-driven gradient optimization for learning high-precision quantum control

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53:32

published on July 16, 2018

Virtualizing quantum errors: open-loop controls for noise characterization and modification of error correlations

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52:30

published on July 16, 2018

Quantum thermodynamics of complex systems

By Adolfo del Campo

50:51

published on July 16, 2018

On the structure of quantum Markov semigroups

By Franco Fagnola

51:15

published on July 16, 2018

Quantum feedback for measurement and control

By Leigh Martin

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