# Ultimate limit of quantum beam tracking

@article{Qi2018UltimateLO, title={Ultimate limit of quantum beam tracking}, author={Haoyu Qi and Kamil Br'adler and Christian Weedbrook and Saikat Guha}, journal={arXiv: Quantum Physics}, year={2018} }

Tracking small transverse displacements of an optical beam with ultra-high accuracy is a fundamental problem underlying numerous important applications ranging from pointing, acquisition and tracking for establishing a lasercom link, to atomic force microscopy for imaging with atomic-scale resolution. Determining what is the optimal quantum-optical probe and the best achievable sensitivity of measuring a small transverse optical beam displacement, is the fundamental question central to these…

## 4 Citations

Entanglement-enhanced estimation of a parameter embedded in multiple phases

- PhysicsPhysical Review Research
- 2021

Quantum enhanced sensing promises to improve the performance of sensing tasks using non-classical probes and measurements using far less scene-modulated photons than possible by the best classical…

Photonic quantum metrology

- Physics
- 2020

This work discusses the current experimental and theoretical challenges, and the open questions towards implementation of photonic quantum sensors with quantum-enhanced performances in the presence of noise, in the research area of multiparameter quantum metrology, where multiple parameters have to be estimated at the same time.

Distributed quantum sensing in a continuous-variable entangled network

- Physics
- 2019

Networking is integral to quantum communications 1 and has significant potential for upscaling quantum computer technologies 2 . Recently, it was realized that the sensing performances of multiple…

Quantum-Enhanced Fiber-Optic Gyroscopes using Quadrature Squeezing and Continuous-Variable Entanglement

- Physics2020 Conference on Lasers and Electro-Optics (CLEO)
- 2020

For fiber-optic gyroscope designs, we analyze the quantum enhancement from quadrature-squeezed and entangled optical probe states for rotation sensing. Under realistic experimental constraints and…

## References

SHOWING 1-10 OF 43 REFERENCES

Progress in optics

- PhysicsIEEE Journal of Quantum Electronics
- 1980

Have you ever felt that the very title, Progress in Optics, conjured an image in your mind? Don’t you see a row of handsomely printed books, bearing the editorial stamp of one of the most brilliant…

Modern Quantum Mechanics

- Physics
- 1986

1. Fundamental Concepts. 2. Quantum Dynamics. 3. Theory of Angular Momentum. 4. Symmetry in Quantum Mechanics. 5. Approximation Methods. 6. Identical Particles. 7. Scattering Theory. Appendices.…

Handbook of CCD Astronomy

- Physics
- 2000

Prefaces 1. Introduction 2. CCD manufacturing and operation 3. Characterization of CCDs 4. CCD imaging 5. Photometry and astronomy 6. Spectroscopy with CCDs 7. CCDs used in space and at short…

Asymptotic theory of quantum statistical inference : selected papers

- Physics
- 2005

Hypothesis Testing Quantum Cramer-Rao Bound in Mixed States Model Quantum Cramer-Rao Bound in Pure States Model Group Symmetric Approach to Pure States Model Large Deviation Theory in Quantum…

Atomic force microscopy

- PhysicsNature
- 1990

The atomic force microscope can resolve individual atoms and molecules on some sample surfaces — even nonconducting samples in water or other fluids.

Fundamentals of statistical signal processing: estimation theory

- Mathematics
- 1993

Minimum variance unbiased estimation Cramer-Rao lower bound linear models general minimum variance unbiased estimation best linear unbiased estimators maximum likelihood estimation least squares…

Annals of Physics 247

- 135
- 1996

Physical Review A 97

- 032329
- 2018

Optica 3

- 1300
- 2016