Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR835 papers
- The Ohio State UniversityUS812 papers
- Universidade de São PauloBR798 papers
- Panjab UniversityIN636 papers
- Universidade Federal do ABCBR635 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di TorinoIT634 papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR603 papers
- Benemérita Universidad Autónoma de PueblaMX594 papers
- European Organization for Nuclear ResearchCH583 papers
- Wayne State UniversityUS576 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di BolognaIT570 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di CataniaIT565 papers
12 papers · 2 filters
Generalized Purity and Quantum Phase Transition for Bose-Einstein condensates in a Symmetric Double Well
Thiago F. Viscondi, K. Furuya, M. C. de Oliveira
The generalized purity is employed for investigating the process of coherence loss and delocalization of the Q-function in the Bloch sphere of a two-mode Bose-Einstein condensate i…
Entanglement and the Mott insulator - superfluid phase transition in bosonic atom chains
R. J. Costa Farias, M. C. de Oliveira
We analyze the developing of bipartite and multipartite entanglement through the Mott-Insulator - Superfluid quantum phase transition. Starting from a Mott insulator state, where a…
Non-Gaussian two-mode squeezing and continuous variable entanglement of linearly and circularly polarized light beams interacting with cold atoms
R. J. Missori, M. C. de Oliveira, K. Furuya
We investigate how entangled coherent states and superpositions of low intensity coherent states of non-Gaussian nature can be generated via non-resonant interaction between either…
Coherent state approach to the cross collisional effects in the population dynamics of a two-mode Bose-Einstein condensate
Thiago F. Viscondi, K. Furuya, M. C. de Oliveira
We reanalyze the non-linear population dynamics of a Bose-Einstein Condensate (BEC) in a double well trap considering a semiclassical approach based on a time dependent variational…
A conjugate for the Bargmann representation
A. D. Ribeiro, F. Parisio, M. A. M. de Aguiar
In the Bargmann representation of quantum mechanics, physical states are mapped into entire functions of a complex variable z*, whereas the creation and annihilation operators $\ha…
Kerr nonlinearities and nonclassical states with superconducting qubits and nanomechanical resonators
F. L. Semião, K. Furuya, G. J. Milburn
We propose the use of a superconducting charge qubit capacitively coupled to two resonant nanomechanical resonators to generate Yurke-Stoler states, i.e. quantum superpositions of…
Complete State Reconstruction of a Two-Mode Gaussian State via Local Operations and Classical Communication
Gustavo Rigolin, Marcos C. de Oliveira
We propose a strictly local quantum tomography protocol for a bipartite system. We show that the joint density matrix of an arbitrary two-mode Gaussian state, entangled or not, is…
Relation between phase and dwell times for quantum tunneling of a relativistically propagating particle
Alex E. Bernardini
The general and explicit relation between the phase time and the dwell time for quantum tunneling of a relativistically propagating particle is investigated and quantified. In anal…
Entanglement reciprocation using three level atoms in a lambda configuration
F. C. Lourenco, A. Vidiella-Barranco
We propose a scheme in which entanglement can be transferred from atoms (discrete variables) to entangled states of cavity fields (continuous variables). The cavities play the role…
Delay time computation for relativistic tunneling particles
Alex E. Bernardini
We study the tunneling zone solutions of a one-dimensional electrostatic potential for the relativistic (Dirac to Klein-Gordon) wave equation when the incoming wave packet exhibits…
Paraconsistent Machines and their Relation to Quantum Computing
Juan C. Agudelo, Walter Carnielli
We describe a method to axiomatize computations in deterministic Turing machines. When applied to computations in non-deterministic Turing machines, this method may produce contrad…
Evaluation of the semiclassical coherent state propagator in the presence of phase space caustics
A D Ribeiro, M A M de Aguiar
A uniform approximation for the coherent state propagator, valid in the vicinity of phase space caustics, was recently obtained using the Maslov method combined with a dual represe…