2.3k citations
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
15 papers · 2 filters
Multifractality in the fidelity of the Toffoli gate
Jalil Khatibi Moqadam, Guilherme S. Welter, Paulo A. A. Esquef
We analyze the multifractality of the fidelity in an engineered Toffoli gate. Using quantum control methods, we define several optimization problems whose global solutions realize…
Quantum Key Distribution using Continuous-variable non-Gaussian States
L. F. M. Borelli, L. S. Aguiar, J. A. Roversi +1
In this work we present a quantum key distribution protocol using continuous-variable non-Gaussian states, homodyne detection and post-selection. The employed signal states are the…
Continuous-variable phase-estimation with unitary and random linear disturbance
Douglas Delgado de Souza, Marco G. Genoni, M. S. Kim
We address the problem of continuous-variable quantum phase estimation in the presence of linear disturbance at the Hamiltonian level, by means of Gaussian probe states. In particu…
Internal Decoherence of a Gaussian Wave Packet in a Harmonic Potential
A. Cidrim, F. E. A. dos Santos, A. O. Caldeira
We have studied the quantum dissipative problem of a Gaussian wave packet under the influence of a harmonic potential. A phenomenological approach to dissipation is adopted in the…
Nonzero Classical Discord
Vlad Gheorghiu, Marcos C. de Oliveira, Barry C. Sanders
Quantum discord is the quantitative difference between two alternative expressions for bipartite mutual information, given respectively in terms of two distinct definitions for the…
Testing Time Reversal Symmetry in Artificial Atoms
Frederico Brito, Francisco Rouxinol, M. D. LaHaye +1
Over the past several decades, a rich series of experiments has repeatedly verified the quantum nature of superconducting devices, leading some of these systems to be regarded as a…
Limitations imposed by complementarity
F. E. S. Steinhoff, M. C. de Oliveira
Complementarity is one of the main features of quantum physics that radically departs from classical notions. Here we consider the limitations that this principle imposes due to th…
Two coupled qubits interacting with a thermal bath: A comparative study of different models
G. L. Deçordi, A. Vidiella-Barranco
We investigate a system of two interacting qubits having one of them isolated and the other coupled to a thermal reservoir. We consider two different models of system-reservoir int…
Capacitive Coupling of Two Transmission Line Resonators Mediated by the Phonon Number of a Nanoelectromechanical Oscillator
O. P. de Sá Neto, M. C. de Oliveira, F. Nicacio +1
Detection of quantum features in mechanical systems at the nanoscale constitutes a challenging task, given the weak interaction with other elements and the available technics. Here…
Quantum walks on a circle with optomechanical systems
Jalil Khatibi Moqadam, Renato Portugal, Marcos Cesar de Oliveira
We propose an implementation of a quantum walk on a circle on an optomechanical system by encoding the walker on the phase space of a radiation field and the coin on a two-level st…
Deviations from reversible dynamics in a qubit-oscillator system coupled to a very small environment
A. Vidiella-Barranco
In this contribution it is considered a simple and solvable model consisting of a qubit in interaction with an oscillator exposed to a very small "environment" (a second qubit). An…
Dynamics of atom-field entanglement in a bimodal cavity
G. L. Deçordi, A. Vidiella-Barranco
We investigate some aspects of the dynamics and entanglement of bipartite quantum system (atom-quantized field), coupled to a third ``external" subsystem (quantized field). We make…
Non-Markovianity through accessible information
F. F. Fanchini, G. Karpat, B. Çakmak +6
The degree of non-Markovianity of quantum processes has been characterized in several different ways in the recent literature. However, the relationship between the non-Markovian b…
The Snell law for quaternionic potentials
Stefano De Leo, Gisele Ducati
By using the analogy between optics and quantum mechanics, we obtain the Snell law for the planar motion of quantum particles in the presence of quaternionic potentials.
Coherence properties of coupled optomechanical cavities
T. Figueiredo Roque, A. Vidiella-Barranco
In this work we investigate an optomechanical system consisting of two cavities coupled to the same mechanical resonator. We consider each cavity being weakly pumped as well as a s…