10.6k 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 ScientifiqueFR2.4k papers
- Institute for Theoretical and Experimental PhysicsRU2.3k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR2.2k papers
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19 papers · 2 filters
Hidden correlations in indivisible qudits as a resource for quantum technologies on examples of superconducting circuits
Margarita A Man'ko, Vladimir I Man'ko
We show that the density-matrix states of noncomposite qudit systems satisfy entropic and information relations like the subadditivity condition, strong subadditivity condition, an…
Spectral properties of reduced fermionic density operators and parity superselection rule
Grigori G. Amosov, Sergey N. Filippov
We consider pure fermionic states with a varying number of quasiparticles and analyze two types of reduced density operators: one is obtained via tracing out modes, the other is ob…
Entropic inequalities for matrix elements of rotation group irreducible representations
V. I. Man'ko, L. A. Markovich
Using the entropic inequalities for Shannon and Tsallis entropies new inequalities for some classical polynomials are obtained. To this end, an invertible mapping for the irreducib…
Gauge transformation of quantum states in probability representation
Ya. A. Korennoy, V. I. Manko
The gauge invariance of the evolution equations of tomographic probability distribution functions of quantum particles in an electromagnetic field is illustrated. Explicit expressi…
Evolution Equation for Joint Tomographic Probability Distribution of Spin-1 Particles
Ya. A. Korennoy, V. I. Man'ko
The nine-component positive vector optical tomographic probability portrait of quantum state of spin-1 particles containing full spatial and spin information about the state withou…
Breakdown of separability due to confinement, submitted to Report on mathematical physics
V. I. Man'ko, L. A. Markovich, A. Messina
A simple system of two particles in a bidimensional configurational space is studied. The possibility of breaking in the time independent Schrödinger equation of the system…
Hidden Quantum Correlations in Single Qudit Systems
Margarita A. Man'ko, Vladimir I. Man'ko
We introduce the notion of hidden quantum correlations. We present the mean values of observables depending on one classical random variable described by the probability distributi…
The replica method and entropy for mixture of two-mode even and odd schrödinger cat states
Ivan V. Dudinetc, Vladimir I. Man'ko
The replica method for calculating the von Neumann entropy is reviewed. Explicit expression for the entropy of the mixed coherent states and is obtained using this meth…
On Testing Entropic Inequalities for Superconducting Qudit
Evgenii Glushkov, Anastasiia Glushkova, V. I. Man'ko
The aim of this work is to verify the new entropic and information inequalities for non-composite systems using experimental density matrix of the qudit state, measure…
Steering in spin tomographic probability representation
V. I. Man'ko, L. A. Markovich
The steering property known for two qubit-state in terms of specific inequalities for correlation function is translated for the state of qudit with the spin . Since most st…
No signaling and strong subadditivity condition for tomographic q-entropy of single qudit states
V. N. Chernega, O. V. Man'ko
The single qudit state tomograms are shown to have the no signaling property. The known and new entropic and information inequalities for Shannon, von Neumann and q-entropies of th…
Single qudit realization of the Deutsch algorithm using superconducting many-level quantum circuits
E. O. Kiktenko, A. K. Fedorov, A. A. Strakhov +1
Design of a large-scale quantum computer has paramount importance for science and technologies. We investigate a scheme for realization of quantum algorithms using noncomposite qua…
Undoing the effect of loss on quantum entanglement
Alexander E. Ulanov, Ilya A. Fedorov, Anastasia A. Pushkina +3
Entanglement distillation is a process via which the strength and purity of quantum entanglement can be increased probabilistically. It is a key step in many quantum communication…
On pseudo-stochastic matrices and pseudo-positive maps
D. Chruściński, V. I. Man'ko, G. Marmo +1
Stochastic matrices and positive maps in matrix algebras proved to be very important tools for analysing classical and quantum systems. In particular they represent a natural set o…
Generalized tomographic maps and star-product formalism
M. Asorey, P. Facchi, V. I. Man'ko +3
We elaborate on the notion of generalized tomograms, both in the classical and quantum domains. We construct a scheme of star-products of thick tomographic symbols and obtain in ex…
Steering and correlations for the single qudit state on the example of
V. I. Man'ko, L. A. Markovich
The phenomenon of quantum steering and probabilistic meaning of the correlations are discussed for the state of the single qudit. The method of qubit portrait of the qudit states i…
Effective spectrum width of the synchrotron radiation
V. G. Bagrov, D. M. Gitman, A. D. Levin +2
For an exact quantitative description of spectral properties of synchrotron radiation (SR), the concept of effective width of the spectrum is introduced. In the most interesting ca…
Coherent and semiclassical states of a free particle
V. G. Bagrov, D. M. Gitman, A. S. Pereira
Coherent states (CS) were first introduced and studied in detail for bound motion and discrete-spectrum systems like harmonic oscillators and similar systems with a quadratic Hamil…
Coherent states of systems with quadratic Hamiltonians
V. G. Bagrov, D. M. Gitman, A. S. Pereira
Different families of generalized CS for one-dimensional systems with general time dependent quadratic Hamiltonian are constructed. In principle, all known CS of systems with quadr…