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19912026
most citedPlanck 2015 results. XIII. Cosmological parameters

10.6k citations

Showing 2019 · quant-phShow all

20 papers · 2 filters

quant-ph2019★ 33 cited

Sub-shot-noise-limited fiber-optic quantum receiver

M. L. Shcherbatenko, M. S. Elezov, D. V. Sych +1

We experimentally demonstrate a quantum receiver based on Kennedy scheme for discrimination between two phase-modulated weak coherent states. The receiver is assembled entirely fro…

quant-ph2019★ 1 cited

Quantum correlations for two coupled oscillators interacting with two heat baths

Ivan V. Dudinets, Vladimir I. Man'ko

We study a system of two coupled oscillators (the oscillator) each of the oscillators linearly interacts with its own heat bath consisting of a set of independent harmonic osci…

quant-ph2019★ 23 cited

Efficient generation of temporally shaped photons using nonlocal spectral filtering

Valentin Averchenko, Denis Sych, Christoph Marquardt +1

We study the generation of single-photon pulses with the tailored temporal shape via nonlocal spectral filtering. A shaped photon is heralded from a time-energy entangled photon pa…

quant-ph2019★ 18 cited

Dynamics of a harmonic oscillator coupled with a Glauber amplifier

R. Grimaudo, V. I. Man'ko, M. A. Man'ko +1

A system of a quantum harmonic oscillator bi-linearly coupled with a Glauber amplifier is analysed considering a time-dependent Hamiltonian model. The Hilbert space of this system…

quant-ph2019★ 1 cited

On definition of quantum tomography via the Sobolev embedding theorem

G. G. Amosov, Ya. A. Korennoy

We obtain sufficient conditions on kernels of quantum states under which Wigner functions, optical quantum tomograms and linking their formulas are correctly defined. Our approach…

quant-ph2019★ 8 cited

Nonlinear Dynamics from Linear Quantum Evolutions

Florio M. Ciaglia, Fabio Di Cosmo, Armando Figueroa +5

Linear dynamics restricted to invariant submanifolds generally gives rise to nonlinear dynamics. Submanifolds in the quantum framework may emerge for several reasons: one could be…

quant-ph2019★ 26 cited

Probability representation of quantum dynamics using pseudostochastic maps

E. O. Kiktenko, A. O. Malyshev, A. S. Mastiukova +3

In this work, we consider a probability representation of quantum dynamics for finite-dimensional quantum systems with the use of pseudostochastic maps acting on true probability d…

quant-ph2019★ 9 cited

A New Mechanism of Open System Evolution and Its Entropy Using Unitary Transformations in Noncomposite Qudit Systems

Julio A. López-Saldívar, Octavio Castaños, Margarita A. Man'ko +1

The evolution of an open system is usually associated with the interaction of the system with an environment. A new method to study the open-type system evolution of a qubit (two-l…

quant-ph2019★ 8 cited

Qubit representation of qudit states: correlations and state reconstruction

Julio A. López-Saldívar, Octavio Castaños, Margarita A. Man'ko +1

A method to establish a qubit decomposition of a general qudit state is presented. This new representation allows a geometrical depiction of any qudit state in the Bloch sphere. Ad…

quant-ph2019★ 4 cited

Dichotomic probability representation of quantum states

Margarita A. Man'ko, Vladimir I. Man'ko, Giuseppe Marmo +2

We present systematic proofs of statements about probability representations of qudit density states in terms of standard probability distributions of dichotomic random variables.…

quant-ph2019★ 15 cited

Entangled resource for interfacing single- and dual-rail optical qubits

David Drahi, Demid V. Sychev, Khurram K. Pirov +4

Today's most widely used method of encoding quantum information in optical qubits is the dual-rail basis, often carried out through the polarisation of a single photon. On the othe…

quant-ph2019★ 16 cited

Probability representation of quantum states as a renaissance of hidden variables -- God plays coins

Vladimir N. Chernega, Olga V. Man'ko, Vladimir I. Man'ko

We develop an approach where the quantum system states and quantum observables are described as in classical statistical mechanics -- the states are identified with probability dis…

quant-ph2019★ 13 cited

Quantum interference test of the equivalence principle on antihydrogen

P. -P. Crépin, C. Christen, R. Guérout +3

We propose to use quantum interferences to improve the accuracy of the measurement of the free fall acceleration g of antihydrogen in the GBAR experiment. This method uses most ant…

quant-ph2019★ 5 cited

Tomographic and statistical properties of superposition states for two-mode systems

Sergey V. Kuznetsov, Aleksander V. Kyusev, Olga V. Man'ko

The two-mode even and odd coherent states and two-mode squeezed correlated state are discussed. Photon distribution functions, means, dispersions, Fano factor for even and odd cohe…

quant-ph2019★ 22 cited

Time-dependent oscillator with Kronig-Penney excitation

V. V. Dodonov, O. V. Man'ko, V. I. Man'ko

Exact solutions of the time-dependent Schrodinger equation for a quantum oscillator subject to periodical frequency delta-kicks are obtained. We show that the oscillator occurs in…

quant-ph2019★ 12 cited

Photon-number tomography of multimode states and positivity of the density matrix

Olga Man'ko, V. I. Man'ko

For one-mode and multimode light, the photon-number tomograms of Gaussian quantum states are explicitly calculated in terms of multivariable Hermite polynomials. Positivity of the…

quant-ph2019★ 10 cited

Photon number and optical tomograms for Gaussian states

O. V. Man'ko, V. I. Man'ko

A review of probability representation of quantum states in given for optical and photon number tomography approaches. Explicit connection of photon number tomogram with measurable…

quant-ph2019★ 4 cited

Symplectic Tomography of Schrodinger Cat States of a Trapped Ion

O. V. Man'ko

The marginal distribution of squeezed, rotated and shifted quadrature for two types of nonclassical states of a trapped ion - squeezed correlated states and squeezed even and odd c…

quant-ph2019★ 43 cited

Symplectic tomography of nonlinear coherent states of a trapped ion

O. V. Man'ko

Squeezed and rotated quadrature of an ion in a Paul trap is discussed in connection with reconstructing its quantum state using symplectic-tomography method. Marginal distributions…

quant-ph2019★ 18 cited

Correlations in a system of classical--like coins simulating spin-1/2 states in the probability representation of quantum mechanics

Vladimir N. Chernega, Olga V. Man'ko, Vladimir I. Man'ko

An analog of classical "hidden variables" for qubit states is presented. The states of qubit (two-level atom, spin-1/2 particle) are mapped onto the states of three classical--like…