12 papers
Thermodynamic coprocessor for linear operations with input-size-independent calculation time based on open quantum system
I. V. Vovchenko, A. A. Zyablovsky, A. A. Pukhov +1
Linear operations, e.g., vector-matrix and vector-vector multiplications, are core operations of modern neural networks. To diminish computational time, these operations are implem…
Static SERS with near-minus-one-epsilon substrate
Alexey P. Vinogradov, Evgeny S. Andrianov
A mechanism for additional enhancement of SERS in the nanoparticle-on-mirror scheme is proposed. This new mechanism is based on the use of a substrate made of material with a near-…
Cascade Brilloiun scattering on short-lived phonons for frequency comb generation
Egor R. Verevkin, Ilya V. Doronin, Alexander A. Zyablovsky +1
We consider Brillouin scattering on short-lived phonon modes, such that the relative Brillouin shift between propagating and scattered waves is smaller than the relative width of p…
All-Optical Brillouin Random number Generator
A. R. Mukhamedyanov, E. S. Andrianov, A. A. Zyablovsky
We propose a model of binary random number generator (RNG) based on a Brillouin optomechanical system. The device uses a hard excitation mode in a Brillouin optomechanical system,…
Exceptional points of arbitrary high orders induced by non-Markovian dynamics
Timofey T. Sergeev, Evgeny S. Andrianov, Alexander A. Zyablovsky
Exceptional points are singularities in the spectrum of non-Hermitian systems in which several eigenvectors are linearly dependent and their eigenvalues are equal to each other. Us…
Non-Markovian protection of states from decay in quasi-PT-symmetric systems
T. T. Sergeev, E. S. Andrianov, A. A. Zyablovsky
We consider a quasi-PT-symmetric system of two resonators, one of which interacts with a finite-size environment. The interaction with the environment leads to energy losses in the…