2.2k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of ChileCL188 papers
- Centre National de la Recherche ScientifiqueFR116 papers
- Pontificia Universidad Católica de ChileCL62 papers
- Center for the Development of Nanoscience and NanotechnologyCL55 papers
- Universidad Diego PortalesCL54 papers
- Max Planck Institute for AstronomyDE46 papers
- Pontificia Universidad Católica de ValparaísoCL44 papers
- Université Grenoble AlpesFR44 papers
- University of CambridgeGB41 papers
- Atacama Large Millimeter Submillimeter ArrayCL38 papers
- Institut de Planétologie et d'Astrophysique de GrenobleFR36 papers
- University of the Basque CountryES36 papers
35 papers · 1 filter
Spin Non-commutativity and the Three-Dimensional Harmonic Oscillator
H. Falomir, J. Gamboa, M. Loewe +2
A three-dimensional harmonic oscillator with spin non-commutativity in the phase space is considered. The system has a regular symplectic structure and by using supersymmetric quan…
A geometric path from zero Lyapunov exponents to rotation cocycles
Jairo Bochi, Andrés Navas
We consider cocycles of isometries on spaces of nonpositive curvature . We show that the supremum of the drift over all invariant ergodic probability measures equals the infimum…
Fast nielsen-thurston classification of braids
Matthieu Calvez
We prove the existence of an algorithm which solves the reducibility problem in braid groups and runs in quadratic time with respect to the braid length for any fixed braid index.
Multipartite Entanglement Generation Assisted by Inhomogeneous Coupling
C. E. López, F. Lastra, G. Romero +2
We show that controllable inhomogeneous coupling between two-level systems and a common data bus provides a fast mechanism to produce multipartite entanglement. Our proposal combin…
Division of labour and the evolution of multicellularity
Iaroslav Ispolatov, Martin Ackermann, Michael Doebeli
Understanding the emergence and evolution of multicellularity and cellular differentiation is a core problem in biology. We develop a quantitative model that shows that a multicell…
Semantic Navigation on the Web of Data: Specification of Routes, Web Fragments and Actions
Valeria Fionda, Claudio Gutierrez, Giuseppe Pirró
The massive semantic data sources linked in the Web of Data give new meaning to old features like navigation; introduce new challenges like semantic specification of Web fragments;…
Restoration of Parity Symmetry through Presymmetry
Ernesto A. Matute
Presymmetry, the hidden symmetry underlying the charge and generational patterns of quarks and leptons, is utilized for repairing the left-right asymmetry of the standard model wit…
Twin and Mirror Symmetries from Presymmetry
Ernesto A. Matute
We argue that presymmetry, a hidden predynamical electroweak quark-lepton symmetry that explains the fractional charges and triplication of families, must be extended beyond the St…
Null geodesics in the Reissner-Nordström Anti-de Sitter black holes
Norman Cruz, Marco Olivares, Joel Saavedra +1
In this work we address the study of null geodesics in the background of Reissner-Nordström Anti de Sitter black holes. We compute the exact trajectories in terms of elliptic funct…
Supersymmetric twisting of carbon nanotubes
Vit Jakubsky, Mikhail S. Plyushchay
We construct exactly solvable models of twisted carbon nanotubes via supersymmetry, by applying the matrix Darboux transformation. We derive the Green's function for these systems…
Extended supersymmetry of the self-isospectral crystalline and soliton chains
Adrian Arancibia, Mikhail S. Plyushchay
We study supersymmetric structure of the self-isospectral crystalline chains formed by N copies of the mutually displaced one-gap Lame systems. It is generated by the N(N-1) integr…
Non-degenerated groundstates in the antiferromagnetic Ising model on triangulations
Andrea Jiménez
A triangulation is an embedding of a graph into a closed Riemann surface so that each face boundary is a 3-cycle of the graph. In this work, groundstate degeneracy in the antiferro…
Constraining the Properties of SNe~Ia Progenitors from Light Curves
B. Sadler, P. Hoeflich, E. Baron +6
We present an analysis of high precision V light curves (LC) for 18 local Type Ia Supernovae, SNe Ia, as obtained with the same telescope and setup at the Las Campanas Observatory…
Holographic dark energy in the DGP model
Norman Cruz, Samuel Lepe, Francisco Peña
The braneworld model proposed by Dvali, Gabadadze and Porrati leads to an accelerated universe without cosmological constant or other form of dark energy. Nevertheless, we have inv…
Graphene and non-Abelian quantization
H. Falomir, J. Gamboa, M. Loewe +1
In this article we employ a simple nonrelativistic model to describe the low energy excitation of graphene. The model is based on a deformation of the Heisenberg algebra which make…
Microcausality and quantization of the fermionic Myers-Pospelov model
Justo Lopez-Sarrion, Carlos M. Reyes
We study the fermionic sector of the Myers and Pospelov theory with a general background . The spacelike case without temporal component is well defined and no new ingredients c…
Phonon-induced entanglement dynamics of two donor-based charge quantum bits
F. Lastra, S. A. Reyes, S. Wallentowitz
The entanglement dynamics of a pair of donor-based charge qubits is obtained in analytical form. The disentanglement is induced by off resonant scattering of acoustical phonons in…
Alternating projections on non-tangential manifolds
Fredrik Andersson, Marcus Carlsson
We consider sequences of points obtained by projecting back and forth between two manifolds $\M_1$ and $\M_2$, and give conditions guaranteeing that the sequen…
A fast alternating projection method for complex frequency estimation
Fredrik Andersson, Marcus Carlsson, Per-Anders Ivert
The problem of approximating a sampled function using sums of a fixed number of complex exponentials is considered. We use alternating projections between fixed rank matrices and H…
Quantum tomography in position and momentum space
J. Casanova, C. E. Lopez, J. J. Garcia-Ripoll +2
We introduce a method of quantum tomography for a continuous variable system in position and momentum space. We consider a single two-level probe interacting with a quantum harmoni…
Scaling relations for magnetic nanoparticles
P. Landeros, J. Escrig, D. Altbir +3
A detailed investigation of the scaling relations recently proposed by [J. d'Albuquerque e Castro, D. Altbir, J. C. Retamal, and P. Vargas, Phys. Rev. Lett. 88, 237202 (2002)] to s…
Magnetic behavior of nanoparticles in patterned thin films
J. Escrig, P. Landeros, J. C. Retamal +2
The magnetic behavior of truncated conical nanoparticles in patterned thin films is investigated as a function of their size and shape. Using a scaling technique, phase diagrams gi…
Crossover between two different magnetization reversal modes in arrays of iron oxide nanotubes
J. Escrig, J. Bachmann, J. Jing +3
The magnetization reversal in ordered arrays of iron oxide nanotubes of 50 nm outer diameter grown by atomic layer deposition is investigated theoretically as a function of the tub…
Magnetostatic interactions between magnetic nanotubes
J. Escrig, S. Allende, D. Altbir +1
The investigation of interactions between magnetic nanotubes is complex and often involves substantial simplifications. In this letter an analytical expression for the magnetostati…