52,630 research outputs found
Desktop Sharing Portal
Desktop sharing technologies have existed since the late 80s. It is often used in scenarios where collaborative computing is beneficial to participants in the shared environment by the control of the more knowledgeable party. But the steps required in establishing a session is often cumbersome to many. Selection of a sharing method, obtaining sharing target’s network address, sharing tool’s desired ports, and firewall issues are major hurdles for a typical non-IT user. In this project, I have constructed a web-portal that helps collaborators to easily locate each other and initialize sharing sessions. The portal that I developed enables collaborated sessions to start as easily as browsing to a URL of the sharing service provider, with no need to download or follow installation instructions on either party’s end. In addition, I have added video conferencing and audio streaming capability to bring better collaborative and multimedia experience
La asociación entre la composición corporal, la actividad física, y la imagen corporal en modelos y controles costarricenses
Correlated Phases of Population Imbalanced Fermi-Fermi Mixtures on an Optical Lattice
We study a two species fermion mixture with different populations on a square
lattice modeled by a Hubbard Hamiltonian with on-site inter-species repulsive
interaction. Such a model can be realized in a cold atom system with fermionic
atoms in two different hyperfine states loaded on an optical lattice and with
tunable inter-species interaction strength via external fields. For a
two-dimensional square lattice, when at least one of the fermion species is
close to half-filling, the system is highly affected by lattice effects. With
the majority species near half-filling and varying densities for the minority
species, we find that several correlated phases emerge as the ground state,
including a spin density wave state, a charge density wave state with stripe
structure, and various p-wave BCS pairing states for both species. We study
this system using a functional renormalization group method, determine its
phase diagram at weak coupling, discuss the origin and characteristics of each
phase, and provide estimates for the critical temperatures.Comment: 5 pages, 4 figures, figures update
Algebraic Quantum Error-Correction Codes
Based on the group structure of a unitary Lie algebra, a scheme is provided
to systematically and exhaustively generate quantum error correction codes,
including the additive and nonadditive codes. The syndromes in the process of
error-correction distinguished by different orthogonal vector subspaces, the
coset subspaces. Moreover, the generated codes can be classified into four
types with respect to the spinors in the unitary Lie algebra and a chosen
initial quantum state
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