A superconducting adiabatic neuron in a quantum regime

• Marina V. Bastrakova,
• Dmitrii S. Pashin,
• Dmitriy A. Rybin,
• Andrey E. Schegolev,
• Nikolay V. Klenov,
• Igor I. Soloviev,
• Anastasiya A. Gorchavkina and
• Arkady M. Satanin

Beilstein J. Nanotechnol. 2022, 13, 653–665, doi:10.3762/bjnano.13.57

• from the utilization of a single technology suitable for superconducting qubits. In this case, the classical part can operate in an adiabatic mode ensuring minimal impact on quantum circuits. However, quantum effects, in turn, can significantly affect the operation of neuromorphic elements. In this

Superconductor–insulator transition in capacitively coupled superconducting nanowires

• Alex Latyshev,
• Andrew G. Semenov and
• Andrei D. Zaikin

Beilstein J. Nanotechnol. 2020, 11, 1402–1408, doi:10.3762/bjnano.11.124

• example, for possible realization of superconducting qubits [13]. Such effects were investigated theoretically [14] and observed experimentally [15][16]. Each quantum phase slip generates sound-like plasma modes [17] which propagate along the wire and interact with other QPSs. The exchange of such Mooij

Unipolar magnetic field pulses as an advantageous tool for ultrafast operations in superconducting Josephson “atoms”

• Daria V. Popolitova,
• Nikolay V. Klenov,
• Igor I. Soloviev,
• Sergey V. Bakurskiy and
• Olga V. Tikhonova

Beilstein J. Nanotechnol. 2019, 10, 1548–1558, doi:10.3762/bjnano.10.152

• picosecond time scale. The experimental realization of a circuit-on-chip for the discussed ultrafast control is presented. Keywords: adiabatic superconducting logic; Josephson “atoms”; quantum-state-control; superconducting qubits; ultrafast quantum operations; Introduction One of the main problems of

• implemented in practice, but with picosecond duration of quantum gates. It should be emphasized that the proposed ultrafast population transfer between selected levels is important not only for the acceleration of the population transitions in superconducting qubits. It also plays a principal role in

Tunable fractional Fourier transform implementation of electronic wave functions in atomically thin materials

• Daniela Dragoman

Beilstein J. Nanotechnol. 2018, 9, 1828–1833, doi:10.3762/bjnano.9.174

• even realized with superconducting qubits [4], but no affordable, room-temperature substitute to present-day desktop computers is available up to now. On the other hand, the development of enhanced computing architectures fabricated with the help of the current nanotechnology could alleviate at least

Magnetic reversal dynamics of a quantum system on a picosecond timescale

• Nikolay V. Klenov,
• Alexey V. Kuznetsov,
• Igor I. Soloviev,
• Sergey V. Bakurskiy and
• Olga V. Tikhonova

Beilstein J. Nanotechnol. 2015, 6, 1946–1956, doi:10.3762/bjnano.6.199

• framework of the macroscopic theory of the magnetic moment, which allows for the comparison and explanation of the quantum and classical behavior. Keywords: atomic-based qubits; magnetization reversal; quantum state control; RSFQ; superconducting qubits; Introduction The study of magnetic moment dynamics

• the superconducting qubits. Thus, the problem can be solved in the framework of the nonstationary Schroedinger equation (rather than the density matrix formalism): where is the Hamiltonian of the unperturbed magnetic system, is the operator of the X projection of the magnetic dipole moment of the

• importance due to the high possibility of the RSFQ-state management of superconducting qubits. The envelope is known to be of the following form [23][24]: where u is the normalized velocity of the SFQ pulse (and tin → −∞). For ω12τ << 1, the pulse area, which determines the time-dependent transitions in the