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19922026
most citedLaser cooling of a nanomechanical oscillator into its quantum ground state

2.3k citations

Showing 2015 · quant-phShow all

13 papers · 2 filters

quant-ph2015★ 14 cited

Quantum bounds on multiplayer linear games and device-independent witness of genuine tripartite entanglement

Gláucia Murta, Ravishankar Ramanathan, Natália Móller +1

Here we study multiplayer linear games, a natural generalization of XOR games to multiple outcomes. We generalize a recently proposed efficiently computable bound, in terms of the…

quant-ph2015★ 11 cited

Multiconfigurational quantum propagation with trajectory-guided generalized coherent states

Adriano Grigolo, Thiago F. Viscondi, Marcus A. M. de Aguiar

A generalized version of the coupled coherent states method for coherent states of arbitrary Lie groups is developed. In contrast to the original formulation, which is restricted t…

quant-ph2015★ 2 cited

Semiclassical Propagator in the Generalized Coherent-State Representation

Thiago F. Viscondi, Adriano Grigolo, Marcus A. M. de Aguiar

A detailed derivation of the semiclassical propagator in the generalized coherent-state representation is performed by applying the saddle-point method to a path integral over the…

quant-ph2015

Universality of finite time disentanglement

Raphael C. Drumond, Cristhiano Duarte, Marcelo Terra Cunha +1

In this paper we investigate how common is the phenomenon of Finite Time Disentanglement (FTD) with respect to the set of quantum dynamics of bipartite quantum states with finite d…

quant-ph2015★ 1 cited

Simulating the discrete-time quantum walk dynamics with simultaneous coin and shift operators

Jalil Khatibi Moqadam, Marcos Cesar de Oliveira

We implement the discrete-time quantum walk model using the continuous-time evolution of the Hamiltonian that includes both the shift and the coin generators. Based on the Trotter-…

quant-ph2015★ 12 cited

Understanding the Pointer States

Carlos Alexandre Brasil, Leonardo Andreta de Castro

In quantum mechanics, pointer states are eigenstates of the observable of the measurement apparatus that represent the possible positions of the display pointer of the equipment. T…

quant-ph2015★ 6 cited

Temperature Measurement and Phonon Number Statistics of a Nanoelectromechanical Resonator

O. P. de Sá Neto, M. C. de Oliveira, G. J. Milburn

Measuring thermodynamic quantities can be easy or not, depending on the system that is being studied. For a macroscopic object, measuring temperatures can be as simple as measuring…

quant-ph2015★ 10 cited

Quantum simulation of the Anderson Hamiltonian with an array of coupled nanoresonators: delocalization and thermalization effects

J. Lozada-Vera, A. Carrillo, O. P. de Sá Neto +3

The possibility of using nanoelectromechanical systems as a simulation tool for quantum many-body effects is explored. It is demonstrated that an array of electrostatically coupled…

quant-ph2015★ 6 cited

Topological structures in the Husimi flow

Matheus Veronez, Marcus A. M. de Aguiar

We study the topological properties of the quantum phase space current in the Husimi representation, focusing on the dynamical differences, induced by these properties, between the…

quant-ph2015★ 24 cited

Quantum theory allows for absolute maximal contextuality

Barbara Amaral, Marcelo Terra Cunha, Adán Cabello

Contextuality is a fundamental feature of quantum theory and a necessary resource for quantum computation and communication. It is therefore important to investigate how large cont…

quant-ph2015★ 10 cited

A simple model for a minimal environment: the two-atom Tavis-Cummings model revisited

G. L. Deçordi, A. Vidiella-Barranco

Individual quantum systems may be interacting with surrounding environments having a small number of degrees of freedom. It is therefore relevant to understand the extent to which…

quant-ph2015★ 12 cited

Protecting the operation from general and residual errors by continuous dynamical decoupling

F. F. Fanchini, R. d. J. Napolitano, B. Çakmak +1

We study the occurrence of errors in a continuously decoupled two-qubit state during a quantum operation under decoherence. We consider a realization of this quantum…

quant-ph2015

Susceptibility of a two-level atom near an isotropic photonic band edge: transparency and band edge profile reconstruction

G. A. Prataviera, M. C. de Oliveira

We discuss the necessary conditions for a two-level system in the presence of an isotropic band edge to be transparent to a probe laser field. The two-level atom is transparent whe…