Zobrazeno 1 - 10
of 193
pro vyhledávání: '"Bychkov, Yu."'
Autor:
Bychkov, Yu. A., Martinez, G.
In the frame of the Hartree-Fock approximation, the dispersion of magnetoplasmons in Graphene is derived for all types of transitions for filling factors $\nu\leq 6$. The optical conductivity components of the magnetoplasmon curves are calculated. It
Externí odkaz:
http://arxiv.org/abs/0710.2420
We analyse theoretically the conductivity of a quantum Hall system exposed to microwave radiation. We find that whenever microwave frequency and cyclotron frequency are commensurate, there is a {\em resonance} in the longitudinal conductivity. This r
Externí odkaz:
http://arxiv.org/abs/cond-mat/0512452
It is shown that the collective spin rotation of a single Skyrmion in quantum Hall ferromagnet can be regarded as precession of the entire spin texture in the external magnetic field, with an effective moment of inertia which becomes infinite in the
Externí odkaz:
http://arxiv.org/abs/cond-mat/0311239
A coherent superposition of many nuclear spin states can be prepared and manipulated via the hyperfine interaction with the electronic spins by varying the Landau level filling factor through the gate voltage in appropriately designed Quantum Hall Fe
Externí odkaz:
http://arxiv.org/abs/cond-mat/0303394
A scenario of quantum computing process based on the manipulation of a large number of nuclear spins in Quantum Hall (QH) ferromagnet is presented. It is found that vacuum quantum fluctuations in the QH ferromagnetic ground state at filling factor $\
Externí odkaz:
http://arxiv.org/abs/cond-mat/0011361
Autor:
Apel, W., Bychkov, Yu. A.
Publikováno v:
Phys. Rev. B 63, 224405 (2001)
We study the relaxation of a spin I that is weakly coupled to a quantum mechanical environment. Starting from the microscopic description, we derive a system of coupled relaxation equations within the adiabatic approximation. These are valid for arbi
Externí odkaz:
http://arxiv.org/abs/cond-mat/0006438
Autor:
Apel, W., Bychkov, Yu. A.
Publikováno v:
Phys. Rev. Lett. 82, 3324 (1999)
We study the spin relaxation in an interacting two--dimensional electron gas in a strong magnetic field for the case that the electron density is close to filling just one Landau sub--level of one spin projection, i.e., for filling factor near one. A
Externí odkaz:
http://arxiv.org/abs/cond-mat/9811224
Autor:
Apel, W., Bychkov, Yu. A.
Publikováno v:
Phys. Rev. Lett. 78, 2188 (1997)
We study interacting electrons in two dimensions moving in the lowest Landau level under the condition that the Zeeman energy is much smaller than the Coulomb energy and the filling factor is one. In this case, Skyrmion quasiparticles play an importa
Externí odkaz:
http://arxiv.org/abs/cond-mat/9610040
Autor:
Bychkov, Yu.1 bych-yu@yandex.ru, Yampolskaya, S.1 s_yampolskaya@yahoo.com, Yastremskii, A.1 yastrems@lgl.hcei.tsc.ru
Publikováno v:
Russian Physics Journal. Aug2017, Vol. 60 Issue 4, p729-740. 12p.
Autor:
Bychkov, Yu.1 bych-yu@yandex.ru, Yastremskii, A.1, Yampolskaya, S.1, Losev, V.1, Dudarev, V.1, Panchenko, Yu.1 ypanchenko@sibmail.com, Puchikin, A.1
Publikováno v:
Russian Physics Journal. Nov2014, Vol. 57 Issue 7, p929-936. 8p.