most citedPlanck 2015 results. XIII. Cosmological parameters

10.6k citations

Showing 2009 · quant-phShow all

11 papers · 2 filters

quant-ph2009★ 34 cited

Low-loss nonlinear polaritonics

Sergey A. Moiseev, Ali A. Kamli, Barry C. Sanders

We propose large low-loss cross-phase modulation between two coupled surface polaritons propagating through a double electromagnetically-induced transparency medium situated close…

quant-ph2009

Scaling Separability Criterion: Application To Gaussian States

Alexandr Sergeevich, Vladimir I. Man'ko

We introduce examples of three- and four-mode entangled Gaussian mixed states that are not detected by the scaling and Peres-Horodecki separability criteria. The presented modifica…

quant-ph2009★ 4 cited

Probability representation and quantumness tests for qudits and two-mode light states

S. N. Filippov, V. I. Man'ko

Using tomographic-probability representation of spin states, quantum behavior of qudits is examined. For a general j-qudit state we propose an explicit formula of quantumness witne…

quant-ph2009★ 11 cited

Fluctuations of Quantum Entanglement

E. B. Fel'dman, M. A. Yurishchev

It is emphasized that quantum entanglement determined in terms of the von Neumann entropy operator is a stochastic quantity and, therefore, can fluctuate. The rms fluctuations of t…

quant-ph2009★ 22 cited

The high probability state transfers and entanglements between different nodes of the homogeneous spin 1/2 chain in inhomogeneous external magnetic field

S. I. Doronin, A. I. Zenchuk

We consider the high probability state transfers and entanglements between different nodes of the spin-1/2 chains governed by the XXZ-Hamiltonian using the inhomogeneous stationary…

quant-ph2009★ 74 cited

Gaussian modeling and Schmidt modes of SPDS biphoton states

M. V. Fedorov, Yu. M. Mikhailova, P. A. Volkov

A double-Gaussian model and the Schmidt modes are found for the biphoton wave function characterizing spontaneous parametric down-conversion with the degenerate collinear phase-mat…

quant-ph2009★ 31 cited

Multiple quantum NMR dynamics of spin-1/2 carrying molecules of a gas in nanopores

S. I. Doronin, A. V. Fedorova, E. B. Fel'dman +1

We consider the multiple quantum (MQ) NMR dynamics of a gas of spin carrying molecules in nanocavities. MQ NMR dynamics is determined by the residual dipole-dipole interactions whi…

quant-ph2009★ 1 cited

Frank-Condon principle and adjustment of optical waveguides with nonhomogeneous refractive indices

Vladimir I. Man'ko, Leonid D. Mikheev, Alexandr Sergeevich

The adjustment of two different selfocs is considered using both exact formulas for the mode-connection coefficients expressed in terms of Hermite polynomials of several variables…

quant-ph2009★ 4 cited

Quantum computing based on space states without charge transfer

S. Filippov, V. Vyurkov, L. Gorelik

An implementation of a quantum computer based on space states in double quantum dots is discussed. There is no charge transfer in qubits during calculation, therefore, uncontrollab…

quant-ph2009★ 17 cited

Vapor pressure dependence of spectral width of EIT in Lambda-level cesium molecular system

Hui Chen, Hebin Li, Yuri V. Rostovtsev +3

We have studied electromagnetically induced transparency (EIT) in diatomic cesium molecules in a vapor cell by using tunable diode lasers. We have observed a sub-natural Lambda-res…

quant-ph2009★ 16 cited

Relationship between probabilities of the state transfers and entanglements in spin systems with simple geometrical configurations

S. I. Doronin, E. B. Fel'dman, A. I. Zenchuk

In this paper we derive analytical relations between probabilities of the excited state transfers and entanglements calculated by both the Wootters and positive partial transpose (…