# Quantum information processing with trapped ions

@article{Wineland2002QuantumIP, title={Quantum information processing with trapped ions}, author={David J. Wineland and M. D. Barrett and Joseph W. Britton and John Chiaverini and Brian Demarco and Wayne M. Itano and Branislav Jelenkovic and Christopher Langer and Dietrich Leibfried and Volker Meyer and Till Rosenband and Tobias Sch{\"a}tz}, journal={Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences}, year={2002}, volume={361}, pages={1349 - 1361} }

Experiments directed towards the development of a quantum computer based on trapped atomic ions are described briefly. We discuss the implementation of single–qubit operations and gates between qubits. A geometric phase gate between two ion qubits is described. Limitations of the trapped–ion method such as those caused by Stark shifts and spontaneous emission are addressed. Finally, we describe a strategy to realize a large–scale device.

## 145 Citations

### Quantum Computing with Trapped Ion Hyperfine Qubits

- PhysicsQuantum Inf. Process.
- 2004

AbstractWe discuss the basic aspects of quantum information processing with trapped ions, including the principles of ion trapping, preparation and detection of hyperfine qubits, single-qubit…

### Integrated optical approach to trapped ion quantum computation

- PhysicsQuantum Inf. Comput.
- 2009

In this paper, integrated optics technologies and concrete optical designs needed for the physical realization of scalable quantum computer are discussed.

### Quantum dense coding with atomic qubits.

- PhysicsPhysical review letters
- 2004

The implementation of quantum dense coding on individual atomic qubits with the use of two trapped 9Be+ ions with a complete Bell measurement that distinguishes the four operations used to encode two bits of classical information is reported.

### Oxford ion-trap quantum computing project

- PhysicsPhilosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences
- 2003

This work discusses the choice of ion species and describes recent experiments on read–out for a ground–state qubit and photoionization trap loading in an ion–trap quantum information processor.

### Experimental and theoretical challenges for the trapped electron quantum computer

- Physics
- 2009

We discuss quantum information processing with trapped electrons. After recalling the operation principle of planar Penning traps, we sketch the experimental conditions to load, cool and detect…

### Quantum computing with trapped ions

- PhysicsEQEC '05. European Quantum Electronics Conference, 2005.
- 2005

### Parallel Transport Quantum Logic Gates with Trapped Ions.

- PhysicsPhysical review letters
- 2016

Single-qubit operations by transporting a beryllium ion with a controlled velocity through a stationary laser beam are demonstrated, providing a path to scalable ion trap quantum computing with reduced requirements on the optical control complexity.

### Resource-Efficient Dissipative Entanglement of Two Trapped-Ion Qubits.

- PhysicsPhysical review letters
- 2022

We demonstrate a simplified method for dissipative generation of an entangled state of two trapped-ion qubits. Our implementation produces its target state faster and with higher fidelity than…

### Errors in trapped-ion quantum gates due to spontaneous photon scattering

- Physics
- 2006

We analyze the error in trapped-ion, hyperfine qubit, quantum gates due to spontaneous scattering of photons from the gate laser beams. We investigate single-qubit rotations that are based on…

## References

SHOWING 1-10 OF 64 REFERENCES

### Simplified Quantum Logic with Trapped Ions

- Physics
- 1997

Abstract : We describe a simplified scheme for quantum logic with a collection of laser-cooled trapped atomic ions. Building on the scheme of Cirac and Zoller, we show how the fundamental…

### Quantum dense coding with atomic qubits.

- PhysicsPhysical review letters
- 2004

The implementation of quantum dense coding on individual atomic qubits with the use of two trapped 9Be+ ions with a complete Bell measurement that distinguishes the four operations used to encode two bits of classical information is reported.

### Quantum Computations with Cold Trapped Ions.

- PhysicsPhysical review letters
- 1995

A quantum computer can be implemented with cold ions confined in a linear trap and interacting with laser beams, where decoherence is negligible, and the measurement can be carried out with a high efficiency.

### Ion Trap Quantum Computing with Warm Ions

- Physics
- 2000

We describe two schemes to manipulate the electronic qubit states of trapped ions independent of the collective vibrational state of the ions. The first scheme uses an adiabatic method, and thus is…

### Demonstration of a fundamental quantum logic gate.

- PhysicsPhysical review letters
- 1995

We demonstrate the operation of a two-bit "controlled-NOT" quantum logic gate, which, in conjunction with simple single-bit operations, forms a universal quantum logic gate for quantum computation.…

### Robust Ising gates for practical quantum computation

- Physics
- 2003

I describe the use of techniques based on composite rotations to combat systematic errors in controlled phase gates, which form the basis of two-qubit quantum logic gates. Although developed and…

### Ion-trap quantum logic using long-wavelength radiation.

- PhysicsPhysical review letters
- 2001

A quantum information processor is proposed that combines experimental techniques and technology successfully demonstrated either in nuclear magnetic resonance experiments or with trapped ions to permit one to individually address and coherently manipulate ions confined in an electrodynamic trap using radiation in the radiofrequency or microwave regime.

### Entanglement and quantum computation with ions in thermal motion

- Physics
- 2000

With bichromatic fields, it is possible to deterministically produce entangled states of trapped ions. In this paper we present a unified analysis of this process for both weak and strong fields, for…

### QUANTUM COMPUTATION WITH IONS IN THERMAL MOTION

- Physics
- 1999

We propose an implementation of quantum logic gates via virtual vibrational excitations in an ion-trap quantum computer. Transition paths involving unpopulated vibrational states interfere…

### 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.