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Publications Influence

Optimal measurements for resolution beyond the Rayleigh limit.

- J. Řeháček, M. Paúr, B. Stoklasa, Z. Hradil, L. Sánchez-Soto
- Physics, Medicine
- Optics letters
- 15 January 2017

We establish the conditions to attain the ultimate resolution predicted by quantum estimation theory for the case of two incoherent point sources using a linear imaging system. The solution is… Expand

45 2

Non-negative Wigner functions for orbital angular momentum states

- I. Rigas, L. Sánchez-Soto, A. Klimov, J. Řeháček, Z. Hradil
- Physics
- 10 September 2009

The Wigner function of a pure continuous-variable quantum state is non-negative if and only if the state is Gaussian. Here we show that for the canonical pair angle and angular momentum, the only… Expand

13 2- PDF

Superiority of heterodyning over homodyning: An assessment with quadrature moments

- Y. Teo, C. R. Muller, H. Jeong, Z. Hradil, J. Řeháček, L. Sánchez-Soto
- Physics
- 26 January 2017

We examine the moment-reconstruction performance of both the homodyne and heterodyne (doublehomodyne) measurement schemes for arbitrary quantum states and introduce moment estimators that optimize… Expand

8 2- PDF

Quantum Fisher information with coherence

- Zdenvek Hradil, Jaroslav vReh'avcek, L. Sánchez-Soto, B. Englert
- Computer Science, Physics
- 22 October 2019

TLDR

8 2- PDF

Lossless multilayers and Lorentz transformations: more than an analogy

- J. Monzón, L. Sánchez-Soto
- Physics
- 1 April 1999

It is shown that the matrix describing a lossless multilayer when no total reflection occurs is an element of the group SU(1,1), which is locally isomorphic to the three-dimensional Lorentz group… Expand

29 1

The transfer matrix: A geometrical perspective

- L. Sánchez-Soto, J. Monzón, Alberto G. Barriuso, J. Cariñena
- Physics
- 1 April 2012

Abstract We present a comprehensive and self-contained discussion of the use of the transfer matrix to study propagation in one-dimensional lossless systems, including a variety of examples, such as… Expand

65 1- PDF

Quantum phases of a qutrit

- A. Klimov, L. Sánchez-Soto, H. Guise, G. Bjork
- Mathematics, Physics
- 15 December 2003

We consider various approaches to treat the phases of a qutrit. Although it is possible to represent qutrits in a convenient geometrical manner by resorting to a generalization of the Poincare… Expand

30 1- PDF

Quantum polarization tomography of bright squeezed light

- C. R. Muller, B. Stoklasa, +7 authors L. Sánchez-Soto
- Physics
- 1 March 2012

We reconstruct the polarization sector of a bright polarization squeezed beam starting from a complete set of Stokes measurements. Given the symmetry that underlies the polarization structure of… Expand

31 1- PDF

Distance-based degrees of polarization for a quantum field (7 pages)

- A. B. Klimov, L. Sánchez-Soto, E. C. Yustas, J. Soderholm, G. Bjork
- Physics
- 29 April 2005

It is well established that unpolarized light is invariant with respect to any SU(2) polarization transformation. This requirement fully characterizes the set of density matrices representing… Expand

39 1- PDF

Quantum polarization properties of two-mode energy eigenstates

- Anita Sehat, J. Soderholm, G. Bjork, P. Espinoza, A. Klimov, L. Sánchez-Soto
- Physics
- 23 July 2004

We show that any pure, two-mode, N-photon state with N odd or equal to two can be transformed into an orthogonal state using only linear optics. According to a recently suggested definition of… Expand

33 1- PDF