Effective quantum Hamiltonian for a two-mesh LC circuit with discrete charge: Managing of currents and voltages

M. Calcina-Nogales, D. Sanjinés, E. Mamani

Research output: Contribution to journalArticlepeer-review

Abstract

In this paper, we study the dynamics of a quantum two-mesh LC circuit with discrete charge subject to rapidly oscillating voltage sources. A time-independent effective Hamiltonian for this system is derived in a high-frequency series expansion upto ω-2 whose dominant behavior indicates the possibility of observing two physical phenomena: first, the controlled manipulation and suppression of the mesh currents by setting specific values of the voltage source amplitudes and, second, the onset of a DC regime (in the single-mesh case) which could be inferred by interpreting the quasi-degenerate quantum states.

Original languageEnglish
Article number501041
JournalInternational Journal of Modern Physics B
Volume36
Issue number18
DOIs
StatePublished - 20 Jul 2022

Bibliographical note

Publisher Copyright:
© 2022 World Scientific Publishing Company.

Keywords

  • effective Hamiltonians
  • mesoscopic systems
  • Quantum circuits

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