Generation of Dicke states using adiabatic passage

Abstract

Entangled states of two ions are realized by using an adiabatic process. Based on the proposal by Linington and Vitanov, we have generated Dicke states in optical qubits of two ${}^{40}$Ca${}^{+}$ ions by applying frequency-chirped optical pulses with time-dependent envelopes to perform rapid adiabatic passage on sideband transitions. One of the biggest advantages of adiabatic approaches is their robustness against variations in experimental parameters, which is verified by performing experiments for different pulse widths or peak Rabi frequencies. Fidelities exceeding 0.5, which is the threshold for inseparable states, are obtained over wide ranges of parameter values.

References in corpus (7)

• Scalable multi-particle entanglement of trapped ions
• Experimental entanglement of a six-photon symmetric Dicke state
• Experimental Observation of Four-Photon Entangled Dicke State with High Fidelity
• Preparation of Dicke States in an Ion Chain
• Extension of the Morris-Shore transformation to multilevel ladders
• Robust creation of arbitrary-sized Dicke states using a single laser pulse
• Quantum gate using qubit states separated by terahertz

Cited by in corpus (16)

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• Continuous variables quantum computation over the vibrational modes of a single trapped ion
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• Ground-state cooling of a nanomechanical oscillator with N spins
• Counterdiabatic driving in spin squeezing and Dicke state preparation
• Generation of a decoherence-free entangled state using a radio frequency dressed state
• Adiabatic Sensing Technique for Optimal Temperature Estimation using Trapped Ions
• Efficient preparation of Dicke states
• Switchable selective interactions in a Dicke Model with Driven Biased term
• On the non-$k$-separability of Dicke class of states and $N$-qudit W states
• Measurement-based ground state cooling of a trapped ion oscillator
• Equally entangled multiqubit states
• Initiation of Superradiance from Different Collective-Spin States