output
20002026
most citedSolar activity during the Holocene: the Hallstatt cycle and its consequence for grand minima and maxim

138 citations

Showing 2014Show all

5 papers · 1 filter

quant-ph2014★ 1 cited

Mutual information-energy inequality for thermal states of a bipartite quantum system

Aleksey Fedorov, Evgeny Kiktenko

In this work, we consider an upper bound for the quantum mutual information in thermal states of a bipartite quantum system. This bound is related with the interaction energy and l…

quant-ph2014★ 91 cited

Multilevel superconducting circuits as two-qubit systems: Operations, state preparation, and entropic inequalities

E. O. Kiktenko, A. K. Fedorov, O. V. Man'ko +1

We theoretically study operations with a four-level superconducting circuit as a two-qubit system. Using a mapping on a two-qubit system, we show how to implement iSWAP gates and H…

quant-ph2014★ 14 cited

Tomographic discord for a system of two coupled nanoelectric circuits

A. K. Fedorov, E. O. Kiktenko, O. V. Man'ko +1

We consider quantum correlations and quantum discord phenomena for two-qubit states with -type density matrices in the tomographic framework of quantum mechanics. By introducing…

astro-ph.SR2014

On differences between the B- and E-approaches and the implications for the Solar atmosphere

Anatoly K. Nekrasov

A simple collisional three-component plasma model consisting of electrons, ions, and neutrals with arbitrary collision frequencies and dynamic time scales is considered. It is show…

astro-ph.SR2014★ 22 cited

Helioseismic Measurements in the Solar Envelope Using Group Velocities of Surface Waves

S. V. Vorontsov, V. A. Baturin, S. V. Ayukov +1

At intermediate and high degree , solar p- and f modes can be considered as surface waves. Using variational principle, we derive an integral expression for the group velocities…