66 citations · 126 across the 5 of their papers we have counts for
6 papers
Symmetry breaking and superfluid currents in a split-ring spinor polariton condensate
Igor Chestnov, Kirill Kondratenko, Sevak Demirchyan +1
Bosonic condensates of spin-less non-interacting particles confined on a ring cannot propagate circular periodic currents once rotation symmetry of the system is broken. However a…
Spinor superfluid currents of exciton-polaritons on a split-ring
Sevak Demirchyan, Igor Chestnov, Kirill Kondratenko +1
Recently, split-ring bosonic condensates of exciton polaritons have been proposed for realisation of qubits. We formulate an analytical model of a polariton condensate in a one-dim…
Exciton radiative lifetime in a monoatomic carbon chain
Stella Kutrovskaya, Sevak Demirchyan, Anton Osipov +4
Linear carbon-based materials such as polyyne and cumulene oligomers provide a versatile platform for nano-physics and engineering. Direct gap quasi-1D polyyne structures are promi…
Exciton energy spectra in polyyne chains
Stella Kutrovskaya, Sevak Demirchyan, Anton Osipov +4
Recently, we have experimentally observed signatures of sharp exciton peaks in the photoluminescence spectra of bundles of monoatomic carbon chains stabilized by gold nanoparticles…
Excitonic fine structure in emission of linear carbon chains
Stella Kutrovskaya, Anton Osipov, Stepan Baryshev +11
We studied monoatomic linear carbon chains stabilised by gold nanoparticles attached to their ends and deposited on a solid substrate. We observe spectral features of straight chai…
Qubits based on Polariton Rabi Oscillators
S. S. Demirchyan, I. Yu. Chestnov, A. P. Alodjants +2
We propose a novel physical mechanism for creation of long lived macroscopic exciton-photon qubits in semiconductor microcavities with embedded quantum wells in the strong couping…