8.6k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- L. Sánchez‐Soto128 · h 37
- M. Martin-Delgado126 · h 47
- F. Llanes-Estrada122 · h 28
- P. Pérez-González2 profiles120 · h 71
- V. Martín-Mayor112 · h 41
- J. Caballero3 profiles103 · h 36
- D. Montes2 profiles100 · h 47
- A. Dobado96 · h 32
- A. L. Maroto79 · h 32
- F. Domínguez‐Adame79 · h 28
- J. Gallego73 · h 30
- L. A. Fernández70 · h 28
- Instituto de Astrofísica de CanariasES749 papers
- Centre National de la Recherche ScientifiqueFR727 papers
- Consejo Superior de Investigaciones CientíficasES669 papers
- Universidad de La LagunaES660 papers
- Universidad Autónoma de MadridES549 papers
- Instituto de Astrofísica de AndalucíaES514 papers
- National Institute for AstrophysicsIT368 papers
- Centro de AstrobiologíaES366 papers
- Universidad Carlos III de MadridES354 papers
- University of PaduaIT351 papers
- Institute of Mathematical SciencesIN350 papers
- Institute of Space SciencesES347 papers
24 papers · 2 filters
Orbital angular momentum from marginals of quadrature distributions
L. L. Sanchez-Soto, A. B. Klimov, P. de la Hoz +4
We set forth a method to analyze the orbital angular momentum of a light field. Instead of using the canonical formalism for the conjugate pair angle-angular momentum, we model thi…
Tunneling, self-trapping and manipulation of higher modes of a BEC in a double well
J. Gillet, M. A. Garcia-March, Th. Busch +1
We consider an atomic Bose-Einstein condensate trapped in a symmetric one-dimensional double well potential in the four-mode approximation and show that the semiclassical dynamics…
SU(2)-invariant depolarization of quantum states of light
Ángel Rivas, Alfredo Luis
We develop an SU(2)-invariant approach to the depolarization of quantum systems as the effect of random unitary SU(2) transformations. From it we derive an SU(2)-invariant Markovia…
Sizing up entanglement in mutually unbiased bases with Fisher information
J. Rehacek, Z. Hradil, A. B. Klimov +2
An efficient method for assessing the quality of quantum state tomography is developed. Special attention is paid to the tomography of multipartite systems in terms of unbiased mea…
What dynamics can be expected for mixed states in two-slit experiments?
A. Luis, A. S. Sanz
Weak-measurement-based experiments [Kocsis et al., Science 332 (2011) 1170] have shown that, at least for pure states, the average evolution of independent photons in Young's two-s…
Bounds on entanglement assisted source-channel coding via the Lovasz theta number and its variants
Toby Cubitt, Laura Mancinska, David Roberson +3
We study zero-error entanglement assisted source-channel coding (communication in the presence of side information). Adapting a technique of Beigi, we show that such coding require…
Quantum Dot Spin Cellular Automata for Realizing a Quantum Processor
Abolfazl Bayat, Charles E. Creffield, John H. Jefferson +2
We show how "single" quantum dots, each hosting a singlet-triplet qubit, can be placed in arrays to build a spin quantum cellular automaton. A fast ( ns) deterministic coh…
Uhlmann Phase as a Topological Measure for One-Dimensional Fermion Systems
O. Viyuela, A. Rivas, M. A. Martin-Delgado
We introduce the Uhlmann geometric phase as a tool to characterize symmetry-protected topological phases in 1D fermion systems, such as topological insulators and superconductors.…
Purifications of multipartite states: limitations and constructive methods
Gemma De las Cuevas, Norbert Schuch, David Pérez-García +1
We analyze the description of quantum many-body mixed states using matrix product states and operators. We consider two such descriptions: (i) as a matrix product density operator…
Nonequilibrium and nonperturbative dynamics of ultrastrong coupling in open lines
B. Peropadre, D. Zueco, D. Porras +1
We study the time and space resolved dynamics of a qubit with an Ohmic coupling to propagating 1D photons, from weak coupling to the ultrastrong coupling regime. A nonperturbative…
Lieb-Robinson bounds for spin-boson lattice models and trapped ions
J. Juenemann, A. Cadarso, D. Perez-Garcia +2
We derive a Lieb-Robinson bound for the propagation of spin correlations in a model of spins interacting through a bosonic lattice field, which satisfies itself a Lieb-Robinson bou…
Contradictory entropic joint uncertainty relations for complementary observables in two-level systems
Alfredo Luis
We show that different entropic measures of fluctuations lead to contradictory uncertainty relations for two complementary observables. We apply Tsallis and Rényi entropies to the…
Quantum versus classical polarization states: when multipoles count
L. L. Sanchez-Soto, A. B. Klimov, P. de la Hoz +1
We advocate for a simple multipole expansion of the polarization density matrix. The resulting multipoles are used to construct bona fide quasiprobability distributions that appear…
Adiabatic quantum metrology with strongly correlated quantum optical systems
P. A. Ivanov, D. Porras
We show that the quasi-adiabatic evolution of a system governed by the Dicke Hamiltonian can be described in terms of a self-induced quantum many-body metrological protocol. This e…
Non-thermal quantum phase transitions
Ricardo Puebla, Armando Relaño
We report a kind of quantum phase transition which takes place in isolated quantum systems with non-thermal equilibrium states and an extra symmetry that commutes with the Hamilton…
Nonlinear cross-Kerr quasiclassical dynamics
I. Rigas, A. B. Klimov, L. L. Sanchez-Soto +1
We study the quasiclassical dynamics of the cross-Kerr effect. In this approximation, the typical periodical revivals of the decorrelation between the two polarization modes disapp…
QED with a parabolic mirror
G. Alber, J. Z. Bernád, M. Stobińska +2
We investigate the quantum electrodynamics of a single two-level atom located at the focus of a parabolic cavity. We first work out the modifications of the spontaneous emission in…
Quantum Google in a Complex Network
G. D. Paparo, M. Mueller, F. Comellas +1
We investigate the behavior of the recently proposed quantum Google algorithm, or quantum PageRank, in large complex networks. Applying the quantum algorithm to a part of the real…
Analysis of a rate-adaptive reconciliation protocol and the effect of the leakage on the secret key rate
David Elkouss, Jesus Martinez-Mateo, Vicente Martin
Quantum key distribution performs the trick of growing a secret key in two distant places connected by a quantum channel. The main reason is that the legitimate users can bound the…
Avoiding dissipation in a system of three quantum harmonic oscillators
Gonzalo Manzano, Fernando Galve, Roberta Zambrini
We analyze the symmetries in an open quantum system composed by three coupled and detuned harmonic oscillators in the presence of a common heat bath. It is shown analytically how t…
Stability of local quantum dissipative systems
Toby S. Cubitt, Angelo Lucia, Spyridon Michalakis +1
Open quantum systems weakly coupled to the environment are modeled by completely positive, trace preserving semigroups of linear maps. The generators of such evolutions are called…
Phase Stabilization of a Frequency Comb using Multipulse Quantum Interferometry
Andrea Cadarso, Jordi Mur-Petit, Juan José García-Ripoll
From the interaction between a frequency comb and an atomic qubit, we derive quantum protocols for the determination of the carrier-envelope offset phase, using the qubit coherence…
Correlations in emitters coupled to plasmonic waveguides
Cristian E. Susa, John H. Reina, Luis L. Sánchez-Soto
We report on quantum, classical, and total correlations in a set of distant quantum emitters coupled via their interaction with the plasmon modes of a one-dimensional waveguide dri…
Optimal quantum tomography of permutationally invariant qubits
A. B. Klimov, G. Bjork, L. L. Sanchez-Soto
Mutually unbiased bases determine an optimal set of measurements to extract complete information about the quantum state of a system. However, quite often a priori information abou…