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Formation of twin compact stars in low-mass X-ray binaries: Implications on eccentric and isolated millisecond pulsar populations

Autor: Chanlaridis, S., Ohse, D., Antoniadis, J., Blaschke, D., Alvarez-Castillo, D. E., Danchev, V., Misra, D., Langer, N.

Millisecond pulsars (MSPs) are laboratories for stellar evolution, strong gravity, and ultra-dense matter. Although MSPs are thought to originate in low-mass X-ray binaries (LMXBs), approximately 27% lack a binary companion, while others are found in

Externí odkaz: http://arxiv.org/abs/2409.04755

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Master equation for operational amplifiers: stability of negative differential converters, crossover frequency and pass-bandwidth

Autor: Mishonov, T. M., Danchev, V. I., Petkov, E. G., Gourev, V. N., Dimitrova, I. M., Serafimov, N. S., Stefanov, A. A., Varonov, A. M.

Publikováno v: J. Phys. Commun. 3 035004 (2019) (open access)

The time dependent master equation from the seminal article by Ragazzini, Randall and Russell [J. R. Ragazzini, R. H. Randall and F. A. Russell, "Analysis of Problems in Dynamics by Electronic Circuits", Proc. of the I.R.E., Vol. 35, pp. 444--452, (1

Externí odkaz: http://arxiv.org/abs/1903.06918

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Predicted electric field induced surface magnetization of vortex phase of superconductors

Autor: Mishonov, T. M., Danchev, V. I., Varonov, A. M.

Publikováno v: Phys. Scr. 95 065501 (2020)

We predict a new effect in condensed matter surface magnetization of the vortex phase of a superconductor induced by electric field. The magnetized superconductor should be one of the plates of a plane capacitor on which a voltage has to be applied.

Externí odkaz: http://arxiv.org/abs/1903.06940

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Simple do-it-yourself experimental set-up for electron charge $q_e$ measurement

Autor: Mishonov, T. M., Petkov, E. G., Mihailova, N. Zh., Stefanov, A. A., Dimitrova, I. M., Gourev, V. N., Serafimov, N. S., Danchev, V. I., Varonov, A. M.

Publikováno v: Eur. J. Phys. 39, 065202 (2018)

A simple experiment for the electron charge $q_e$ measurement is described. The experimental set-up contains standard electronic equipment only and can be built in every high-school lab all around the world with pocket money budget for several days.

Externí odkaz: http://arxiv.org/abs/1807.04688

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