Multi-element logic gates for trapped-ion qubits
@article{Tan2015MultielementLG, title={Multi-element logic gates for trapped-ion qubits}, author={Ting Rei Tan and John Gaebler and Y. Lin and Yong Wan and Ryan Bowler and Dietrich Leibfried and David J. Wineland}, journal={Nature}, year={2015}, volume={528}, pages={380-383} }
Precision control over hybrid physical systems at the quantum level is important for the realization of many quantum-based technologies. In the field of quantum information processing (QIP) and quantum networking, various proposals discuss the possibility of hybrid architectures where specific tasks are delegated to the most suitable subsystem. For example, in quantum networks, it may be advantageous to transfer information from a subsystem that has good memory properties to another subsystem…
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References
SHOWING 1-10 OF 34 REFERENCES
Scaling the Ion Trap Quantum Processor
- PhysicsScience
- 2013
The latest progress and prospects in the scaling of trapped ions to hundreds or thousands of qubits and beyond are reviewed, with the promise of advanced architectures and new technologies, such as microfabricated ion traps and integrated photonics.
Hybrid quantum logic and a test of Bell’s inequality using two different atomic isotopes
- PhysicsNature
- 2015
A deterministic quantum logic gate is used to generate a ‘hybrid’ entangled state of two trapped-ion qubits held in different isotopes of calcium, perform full tomography of the state produced, and make a test of Bell’s inequality with non-identical atoms.
Dissipative production of a maximally entangled steady state of two quantum bits
- PhysicsNature
- 2013
The demonstration of an entangled steady state of two qubits represents a step towards dissipative state engineering, dissipative quantum computation and dissipative phase transitions and engineered coupling to the environment may be applied to a broad range of experimental systems to achieve desired quantum dynamics or steady states.
Experimental Issues in Coherent Quantum-State Manipulation of Trapped Atomic Ions
- PhysicsJournal of research of the National Institute of Standards and Technology
- 1998
Some experimental issues in the proposal for trappedion quantum computation by J. I. Cirac and P. Zoller (University of Innsbruck) are discussed and several possible decoherence mechanisms are examined.
Experimental demonstration of a robust, high-fidelity geometric two ion-qubit phase gate
- PhysicsNature
- 2003
A universal geometric π-phase gate between two beryllium ion-qubits is demonstrated, based on coherent displacements induced by an optical dipole force, which makes it attractive for a multiplexed trap architecture that would enable scaling to large numbers of ions.
Phase Control of Trapped Ion Quantum Gates
- Physics
- 2005
There are several known schemes for entangling trapped ion quantum bits for large-scale quantum computation. Most are based on an interaction between the ions and external optical fields, coupling…
Near-ground-state transport of trapped-ion qubits through a multidimensional array
- Physics
- 2011
We have demonstrated transport of {sup 9}Be{sup +}ions through a two-dimensional Paul-trap array that incorporates an X junction, while maintaining the ions near the motional ground state of the…
Quantum Algorithmic Readout in Multi-Ion Clocks.
- PhysicsPhysical review letters
- 2016
A quantum nondemolition readout of the number of excited clock ions using a single multispecies gate operation which can also be used in other areas of ion trap technology such as quantum information processing, quantum simulations, metrology, and precision spectroscopy.
Large-scale modular quantum-computer architecture with atomic memory and photonic interconnects
- Physics
- 2014
The practical construction of scalable quantum-computer hardware capable of executing nontrivial quantum algorithms will require the juxtaposition of different types of quantum systems. We analyze a…
Experimental entanglement of four particles
- PhysicsNature
- 2000
This work implements a recently proposed entanglement technique to generate entangled states of two and four trapped ions using a single laser pulse, and the method can in principle be applied to any number of ions.