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… 

Figures from this paper

Motional Fock states for quantum-enhanced amplitude and phase measurements with trapped ions
TLDR
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
TLDR
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
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
Photon-recoil spectroscopy: Systematic shifts and nonclassical enhancements
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)
Investigating the quench dynamics of the bound states in a spin-orbital-coupling system using a trapped ion
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
Sculpting bosonic states with arithmetic subtractions
TLDR
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
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,
Phonon-number-resolving detection of multiple local phonon modes in trapped ions
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
Shortcuts to adiabaticity in the double well
TLDR
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.
...
1
2
...

References

SHOWING 1-10 OF 67 REFERENCES
Trapped-ion state detection through coherent motion.
TLDR
The first method provides a simplified way to distinguish clock states in 27Al+, which avoids ground-state cooling and sideband transitions and reduces spontaneous emission and optical pumping on the spectroscopy ion.
Robust control of quantized motional states of a chain of trapped ions by collective adiabatic passage
A simple technique for robust generation of vibrational Fock states in a chain of trapped ions is proposed. The method is fast and easy to implement, since only a single chirped laser pulse,
Deterministic entanglement of ions in thermal states of motion
We give a detailed description of the implementation of a M?lmer?S?rensen gate entangling two 40Ca+ ions using a bichromatic laser beam near-resonant with a quadrupole transition. By amplitude pulse
Interaction of a laser with a qubit in thermal motion and its application to robust and efficient readout
We present a detailed theoretical and experimental study on the optical control of a trapped-ion qubit subject to thermally induced fluctuations of the Rabi frequency. The coupling fluctuations are
Optimal Phonon-to-Spin Mapping in a system of a trapped ion
We propose a protocol for measurement of the phonon number distribution of a harmonic oscillator based on selective mapping to a discrete spin-1/2 degree of freedom. We consider a system of a
Non-destructive state detection for quantum logic spectroscopy of molecular ions
TLDR
It is shown that individual quantum states in the molecular ion can be distinguished by the strength of their coupling to the optical dipole force and implemented a variant of quantum logic spectroscopy of a molecular resonance.
Precision spectroscopy by photon-recoil signal amplification.
TLDR
This work extends quantum logic spectroscopy to fast, dipole-allowed transitions and applies it to perform an absolute frequency measurement of the absorption of photons by the spectroscopically investigated ion through the photon recoil imparted on a co-trapped ion of a different species.
Efficient coherent internal state transfer in trapped ions using stimulated Raman adiabatic passage
We demonstrate experimentally how the process of stimulated Raman adiabatic passage (STIRAP) can be utilized for efficient coherent internal state transfer in single trapped and laser-cooled 40Ca+
Coherent population transfer among three states: full algebraic solutions and the relevance of non adiabatic processes to transfer by delayed pulses
Ongoing work aimed at developing highly efficient methods of populating a chosen sublevel of an energy level highlights the need to understand off-resonant effects in coherent excitation. This
A single laser system for ground-state cooling of 25Mg+
We present a single solid-state laser system to cool, coherently manipulate and detect 25Mg+ ions. Coherent manipulation is accomplished by coupling two hyperfine ground state levels using a pair of
...
1
2
3
4
5
...