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91 papers · 1 filter
Bewelcome.org -- a non-profit democratic hospex service set up for growth
Rustam Tagiew
This paper presents an extensive data-based analysis of the non-profit democratic hospitality exchange service bewelcome.org. We hereby pursuit the goal of determining the factors…
New Luminous Blue Variables in the Andromeda galaxy
O. Sholukhova, D. Bizyaev, S. Fabrika +3
We performed spectroscopy of five Luminous Blue Variable (LBV) candidates and two known LBV stars (AE And and Var A-1) in M31. We obtained the same-epoch near-infrared (NIR) and op…
Transformation of a single photon field into bunches of pulses
R. N. Shakhmuratov, F. G. Vagizov, V. A. Antonov +2
We propose a method to transform a single photon field into bunches of pulses with controllable timing and number of pulses in a bunch. This method is based on transmission of a ph…
Quantum hashing. Group approach
Mansur Ziatdinov
In this paper we consider a generalization of quantum hash functions for arbitrary groups. We show that quantum hash function exists for arbitrary abelian group. We construct a set…
Multi-qubit time-bin quantum RAM
E. S. Moiseev, S. A. Moiseev
We have proposed a scheme of multi-qubit \textit{quantum random access memory} (qRAM) based on the impedance matched photon echo quantum memory incorporated together with the contr…
On geodesics with negative energies in the ergoregions of dirty black holes
O. B. Zaslavskii
We consider behavior of equatorial geodesics with the negative energy in the ergoregion of a generic rotating "dirty" (surrounded by matter) black hole. It is shown that under very…