# Detection of motional ground state population of a trapped ion using delayed pulses

@article{Gebert2015DetectionOM, title={Detection of motional ground state population of a trapped ion using delayed pulses}, author={Florian Gebert and Yong Wan and Fabian Wolf and J C Heip and Piet O Schmidt}, journal={arXiv: Quantum Physics}, year={2015} }

Efficient preparation and detection of the motional state of trapped ions is important in many experiments ranging from quantum computation to precision spectroscopy. We investigate the stimulated Raman adiabatic passage (STIRAP) technique for the manipulation of motional states in a trapped ion system. The presented technique uses a Raman coupling between two hyperfine ground states in $^{25}$Mg$^+$, implemented with delayed pulses, which removes a single phonon independent of the initial…

## 17 Citations

Motional Fock states for quantum-enhanced amplitude and phase measurements with trapped ions

- PhysicsNature Communications
- 2019

A phase-insensitive Fock-state-based protocol for displacement and frequency metrology that is insensitive to the quantum noise of the vacuum, and is demonstrated using trapped ions.

Phonon arithmetic in a trapped ion system

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Deterministic addition and subtraction of a bosonic particle, in particular a phonon of ionic motion in a harmonic potential, is experimentally demonstrated.

Stimulated Raman adiabatic passage in physics, chemistry, and beyond

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The technique of stimulated Raman adiabatic passage (STIRAP), which allows efficient and selective population transfer between quantum states without suffering loss due to spontaneous emission, was…

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In photon recoil spectroscopy, signals are extracted from recoils imparted by the spectroscopy light on the motion of trapped ions as demonstrated by C. Hempel et al., Nature Photonics 7, 630 (2013)…

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The quantum walk (QW), as the quantum analog of classical random walk, provides a feasible platform to study the topological phenomenon and non-equilibrium dynamics. Here, we propose a novel scheme…

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This work proposes a scheme based on the boson sculpting technique for generating multipartite highly entangled states of motional modes of trapped ion systems and investigates the effects of decoherence on the fidelity of the generated state by performing numerical simulations with realistic noise parameters.

Unifying fast scrambling, thermalization and entanglement through the measurement of FOTOCs in the Dicke model

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Scrambling of quantum information is the process by which information initially stored in the local degrees of freedom of a quantum many-body system spreads over its many-body degrees of freedom,…

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- 2019

We propose and demonstrate phonon-number-resolving detection of the multiple local phonon modes in a trapped-ion chain. To mitigate the effect of phonon hopping during the detection process, the…

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- 2016

These techniques have allowed us to obtain a great benefit in processes as varied as matter-wave splitting, multiplexing/ demultiplexing, beam splitters, cotunneling, population inversion, waveguide optimization, Tonks-Girardeau gas manipulation and bias inversion.

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