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40 papers · 1 filter
Entanglement properties of photon-magnon crystal from nonlinear perspective
M. Wanic, C. Jasiukiewicz, Z. Toklikishvili +5
Quantifying the entanglement between two continuous bosonic modes, such as magnons and photons, is not trivial. The logarithmic negativity, calculated through the quantum Langevin…
An Effective Theory for Graphene Nanoribbons with Junctions
Johann Ostmeyer, Lado Razmadze, Evan Berkowitz +2
Graphene nanoribbons are a promising candidate for fault-tolerant quantum electronics. In this scenario, qubits are realised by localised states that can emerge on junctions in hyb…
Random spin-orbit gates in the system of a Topological insulator and a Quantum dot
S. Wolski, M. Inglot, C. Jasiukiewicz +7
The spin-dependent scattering process in a system of topological insulator and quantum dot is studied. The unitary scattering process is viewed as a gate transformation applied to…
Group Structure of Wilson Loops in 2D Models with 2- and 4-Band Energy Spectra
T. Supatashvili, M. Eliashvili, G. Tsitsishvili
We consider a tight-binding model defined by a matrix Hamiltonian over 2D Brillouin zone. Multiband energy spectrum gives rise to a non-Abelian gauge structure set by the Berry con…
Stratonovich-Ito integration scheme in ultrafast spin caloritronics
L. Chotorlishvili, Z. Toklikishvili, X. -G. Wang +3
The magnonic spin Seebeck effect is a key element of spin caloritronic, a field that exploits thermal effects for spintronic applications. Early studies were focused on investigati…
Influence of spin-orbit and spin-Hall effects on the spin Seebeck current beyond linear response
L. Chotorlishvili, Z. Toklikishvili, X. -G. Wang +3
We study the spin transport theoretically in heterostructures consisting of a ferromagnetic metallic thin film sandwiched between heavy-metal and oxide layers. The spin current in…