Observation of Stueckelberg oscillations in dipole-dipole interactions

Abstract

We have observed Stueckelberg oscillations in the dipole-dipole interaction between Rydberg atoms with an externally applied radio-frequency field. The oscillating RF field brings the interaction between cold Rydberg atoms in two separated volumes into resonance. We observe multi-photon transitions when varying the amplitude of the RF-field and the static electric field offset. The angular momentum states we use show a quadratic Stark shift, which leads to a fundamentally different behavior than linearly shifting states. Both cases are studied theoretically using the Floquet approach and are compared. The amplitude of the sidebands, related to the interaction strength, is given by the Bessel function in the linearly shifting case and by the generalized Bessel function in the quadratically shifting case. The oscillatory behavior of both functions corresponds to Stueckelberg oscillations, an interference effect described by the semi-classical Landau-Zener-Stueckelberg model. The measurements prove coherent dipole-dipole interaction during at least 0.6 micro-seconds.

References in corpus (4)

• Two-level systems driven by large-amplitude fields
• Spatially resolved observation of dipole-dipole interaction between Rydberg atoms
• Recursive algorithm for arrays of generalized Bessel functions: Numerical access to Dirac-Volkov solutions
• Simultaneous position and state measurement of Rydberg atoms

Cited by in corpus (29)

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• Amplitude spectroscopy of two coupled qubits
• Periodically Driven Array of Single Rydberg Atoms
• Mirror, mirror: Landau-Zener-Stuckelberg-Majorana interferometry of a superconducting qubit in front of a mirror
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• Spatial Landau-Zener-Stückelberg interference in spinor Bose-Einstein condensates
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• Probing interactions between Rydberg atoms with large electric dipole moments in amplitude modulated electric fields
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• Rydberg-Stark states in oscillating electric fields
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• Landau-Zener-Stueckelberg interferometry with driving fields in the quantum regime
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• Observation of adiabatic and non-adiabatic behavior for CPMG sequence in time-dependent magnetic fields
• The time-domain Landau-Zener-Stuckelberg-Majorana interference in optical lattice clock