Zobrazeno 1 - 10
of 2 401
pro vyhledávání: '"A. Kavokin"'
Autor:
Sedov, Evgeny, Kavokin, Alexey
This study investigates the performance of a binarized neuromorphic network leveraging polariton dyads, optically excited pairs of interfering polariton condensates within a microcavity to function as binary logic gate neurons. Employing numerical si
Externí odkaz:
http://arxiv.org/abs/2411.06124
Autor:
Cao, Junhui, Kavokin, Alexey
The BCS theory has achieved widespread success in describing conventional superconductivity. However, when the length scale reaches the atomic limit, the reduced dimensionality may lead to the quantum breakdown resulting in unpredictable superconduct
Externí odkaz:
http://arxiv.org/abs/2409.12201
We experimentally observe harmonic oscillations in a bosonic condensate of exciton-polaritons confined within an elliptical trap. These oscillations arise from quantum beats between two size-quantized states of the condensate, split in energy due to
Externí odkaz:
http://arxiv.org/abs/2407.12429
Autor:
Smirnov, D. S., Kavokin, K. V.
The concept of nuclear spin temperature has been a cornerstone of the theory of dynamic nuclear spin polarization by electrons in various semiconductor structures for decades. Still, it is not always applicable to strongly localized electrons due to
Externí odkaz:
http://arxiv.org/abs/2406.08296
The Seebeck effect consists in the induction of a voltage drop due to the temperature difference in a conductor. In the middle of XIXth century, Lord Kelvin has proposed a relation between the Seebeck coefficient and the derivative of the chemical po
Externí odkaz:
http://arxiv.org/abs/2405.10807
Autor:
Kudlacik, Dennis, Kopteva, Nataliia E., Kotur, Mladen, Yakovlev, Dmitri R., Kavokin, Kirill V., Harkort, Carolin, Karzel, Marek, Zhukov, Evgeny A., Evers, Eiko, Belykh, Vasilii V., Bayer, Manfred
Optical orientation of carrier spins by circularly polarized light is the basic concept and tool of spin physics in semiconductors. We study the optical orientation of electrons and holes in a crystal of the FA$_{0.9}$Cs$_{0.1}$PbI$_{2.8}$Br$_{0.2}$
Externí odkaz:
http://arxiv.org/abs/2404.05369
Nuclear magnetic resonance (NMR) is particularly relevant for studies of internuclear spin coupling at zero and ultra-low fields (ZULF), where spin-spin interactions dominate over Zeeman ones. Here we report on ZULF NMR in CdTe. In this semiconductor
Externí odkaz:
http://arxiv.org/abs/2403.17593
Autor:
Gribakin, Boris F., Litvyak, Valentina M., Kotur, Mladen, André, Regis, Vladimirova, Maria, Yakovlev, Dmitri R., Kavokin, Kirill V.
The nuclear spin systems in CdTe/(Cd,Zn)Te and CdTe/(Cd,Mg)Te quantum wells (QW) are studied using a multistage technique combining optical pumping and Hanle effect-based detection. The samples demonstrate drastically different nuclear spin dynamics
Externí odkaz:
http://arxiv.org/abs/2402.17435
Autor:
Sedov, Evgeny, Kavokin, Alexey
We introduce a novel neuromorphic network architecture based on a lattice of exciton-polariton condensates, intricately interconnected and energized through non-resonant optical pumping. The network employs a binary framework, where each neuron, faci
Externí odkaz:
http://arxiv.org/abs/2401.07232
Well-known Mott's formula links the thermoelectric power characterised by Seebeck coefficient to conductivity. We calculate analytically the thermoelectric current and Seebeck coefficient in one-dimensional systems and show that, while the prediction
Externí odkaz:
http://arxiv.org/abs/2401.03721