Experimental realization of a tunable anisotropic quantum Rabi simulator on superconducting hardware, demonstrating anisotropy-driven spectral reconstruction and a ground-state parity crossing absent in the isotropic case.
In-Situ Engineering of the Anisotropic Rabi Model in Circuit QED
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abstract
The anisotropic Rabi model (ARM), which features tunable Jaynes-Cummings (JC) and anti-Jaynes-Cummings (AJC) interactions, has remained challenging to realize fully. We present a circuit QED architecture featuring a qubit, a resonator, and a flux-tunable coupler that provides complete dynamic control over the ARM Hamiltonian. By leveraging simultaneous capacitive and inductive couplings, we can in-situ tune the interaction from the pure JC to the pure AJC regime without requiring external parametric modulation. This dynamic control enables useful quantum measurement and coherence capabilities, including dispersive shift cancellation for protection against photon shot-noise dephasing, and Purcell-suppressed readout. Our work establishes a versatile platform for exploring the ARM's full parameter space and its broader applications in quantum information processing.
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quant-ph 1years
2026 1verdicts
UNVERDICTED 1representative citing papers
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Programmable spectral symmetries in an anisotropic quantum Rabi simulator
Experimental realization of a tunable anisotropic quantum Rabi simulator on superconducting hardware, demonstrating anisotropy-driven spectral reconstruction and a ground-state parity crossing absent in the isotropic case.