Coupling-assisted Landau-Majorana-Stuckelberg-Zener transition in two-interacting-qubit systems

Abstract

We analyse a system of two interacting spin-qubits subjected to a Landau-Majorana-Stückelberg-Zener (LMSZ) ramp. We prove that LMSZ transitions of the two spin-qubits are possible without an external transverse static field since its role is played by the coupling between the spin-qubits. We show how such a physical effect could be exploited to estimate the strength of the interaction between the two spin-qubits and to generate entangled states of the system by appropriately setting the slope of the ramp. Moreover, the study of effects of the coupling parameters on the time-behaviour of the entanglement is reported. Finally, our symmetry-based approach allows us to discuss also effects stemming from the presence of a classical noise or non-Hermitian dephasing terms.

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• Landau-Majorana-Stuckelberg-Zener dynamics driven by coupling for two interacting qutrit systems
• Dynamics of a harmonic oscillator coupled with a Glauber amplifier
• Quantum Correlation Dynamics in Controlled Two-Coupled-Qubit Systems
• Dzyaloshinskii-Moriya and dipole-dipole interactions affect coupling-based Landau-Majorana-Stückelberg-Zener transitions
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• Greenberger-Horne-Zeilinger state generation in qubit-chains via a single $\pi /2$-pulse