Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Shapiro, Dmitriy S."'
We study quantum phase transitions in a long and narrow topological Josephson junction. The low-energy excitations comprise Majorana fermions propagating along the junction, coupled to magnons in an embedded ferromagnetic layer. Based on mean-field a
Externí odkaz:
http://arxiv.org/abs/2410.22514
Publikováno v:
Phys. Rev. B 107, 125404 (2023)
We study charge transport in a single-electron transistor implemented as an interferometer such that the Coulomb blockaded middle island contains a circular chiral Majorana or Dirac edge mode. We concentrate on the regime of small conductance and pro
Externí odkaz:
http://arxiv.org/abs/2301.05312
Autor:
Mazhorin, Grigoriy S., Moskalenko, Ilya N., Besedin, Ilya S., Shapiro, Dmitriy S., Remizov, Sergey V., Pogosov, Walter V., Moskalev, Dmitry O., Pishchimova, Anastasia A., Dobronosova, Alina A., Rodionov, I. A., Ustinov, Alexey V.
Publikováno v:
Phys. Rev. A 105, 033519 (2022)
We explore experimentally a quantum metamaterial based on a superconducting chip with 25 frequency-tunable transmon qubits coupled to a common coplanar resonator. The collective bright and dark modes are probed via the microwave response, i.e., by me
Externí odkaz:
http://arxiv.org/abs/2107.01420
Publikováno v:
Phys. Rev. B 104, 035434 (2021)
We consider an interferometer based on artificially induced topological superconductivity and chiral 1D Majorana fermions. The (non-topological) superconducting island inducing the superconducting correlations in the topological substrate is assumed
Externí odkaz:
http://arxiv.org/abs/2102.03220
Autor:
Shapiro, Dmitriy S.
Publikováno v:
Sci. Rep. 11, 8328 (2021)
Under nonequilibrium conditions, quantum optical systems reveal unusual properties that might be distinct from those in condensed matter. The fundamental reason is that photonic eigenstates can have arbitrary occupation numbers, whereas in electronic
Externí odkaz:
http://arxiv.org/abs/2009.09373
Publikováno v:
Phys. Rev. B 98, 245405 (2018)
We consider a Josephson contact mediated by 1D chiral modes on a surface of a 3D topological insulator with superimposed superconducting and magnetic layers. The system represents an interferometer in which 1D chiral Majorana modes on the boundaries
Externí odkaz:
http://arxiv.org/abs/1809.02067
In this work we introduce the many-body synchronization of an interacting qubit ensemble which allows one to switch dynamically from many-body-localized (MBL) to an ergodic state. We show that applying of $\pi$-pulses with altering phases, one can ef
Externí odkaz:
http://arxiv.org/abs/1712.04055
Publikováno v:
Phys. Rev. B 95, 195425 (2017)
We investigate the thermoelectric current and heat conductance in a chiral Josephson contact on a surface of a 3D topological insulator, covered with superconducting and magnetic insulator films. The contact consists of two junctions of Majorana and
Externí odkaz:
http://arxiv.org/abs/1611.09724
Publikováno v:
JETP Letters, Vol. 105, Issue 2, pp. 130-136 (2017)
We study quantum effects of strong driving field applied to dissipative hybrid qubit-cavity system which are relevant for a realization of quantum gates in superconducting quantum metamaterials. We demonstrate that effects of strong and non-stationar
Externí odkaz:
http://arxiv.org/abs/1610.07461
Publikováno v:
Phys. Rev. B 93, 155411 (2016)
We explore a long Josephson contact transporting Cooper pairs between 1D charge-neutral chiral Majorana modes in the leads via charged Dirac chiral modes in the normal region. We investigate the regimes of (i) transparent contacts and (ii) tunnel jun
Externí odkaz:
http://arxiv.org/abs/1508.07772