# Optical Quantum Computing

@article{OBrien2007OpticalQC, title={Optical Quantum Computing}, author={Jeremy Lloyd O'Brien}, journal={Science}, year={2007}, volume={318}, pages={1567 - 1570} }

In 2001, all-optical quantum computing became feasible with the discovery that scalable quantum computing is possible using only single-photon sources, linear optical elements, and single-photon detectors. Although it was in principle scalable, the massive resource overhead made the scheme practically daunting. However, several simplifications were followed by proof-of-principle demonstrations, and recent approaches based on cluster states or error encoding have dramatically reduced this…

## Topics from this paper

## 684 Citations

No-go theorem for passive single-rail linear optical quantum computing

- Physics, MedicineScientific reports
- 2013

This no-go theorem proves that photon bunching cannot be passively suppressed even when extra ancilla modes and arbitrary number of photons are used and provides useful guidance for the design of optical quantum computers.

An Introduction to All-Optical Quantum Controlled-NOT Gates

- Physics, Computer ScienceACA
- 2016

This paper gives an overview of different schemes of the proposed CNOT gates and the experimental demonstration by using linear quantum optics system.

Toward large-scale fault-tolerant universal photonic quantum computing

- Physics, Computer ScienceAPL Photonics
- 2019

A hybrid qubit-continuous variable approach for realizing a deterministic universal gate set for photonic qubits and a time-domain multiplexing technique to perform arbitrarily large-scale quantum computing without changing the configuration of photonic circuits will enable scalable implementation of universal photonic quantum computers in which hardware-efficient error correcting codes can be incorporated.

Integration of highly probabilistic sources into optical quantum architectures: perpetual quantum computation

- Physics
- 2011

In this paper, we introduce a design for an optical topological cluster state computer constructed exclusively from a single quantum component. Unlike previous efforts we eliminate the need for on…

Quantum networking with time-bin encoded qu-d-its using single photons emitted on demand from an atom-cavity system

- Physics2013 Conference on Lasers & Electro-Optics Europe & International Quantum Electronics Conference CLEO EUROPE/IQEC
- 2013

Summary form only given. One of today's challenges to realize computing based on quantum mechanics is to reliably and scalably encode information in quantum systems. This is particularly crucial when…

Integrated optics components for quantum information

- Physics2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference (CLEO EUROPE/EQEC)
- 2011

Quantum information science has shown that harnessing quantum mechanical effects can dramatically improve performance for certain tasks in communication, computation and measurement. Of the various…

Integrated micro-comb sources for quantum optical applications.

- Computer Science, Physics
- 2020

Recent progress on the realization of energy-time entangled optical frequency combs is reviewed and how photonic integration and the use of fiber-optic telecommunications components can enable quantum state control with new functionalities, yielding unprecedented capability is discussed.

Efficiency vs. multi-photon contribution test for quantum dots.

- Physics, MedicineOptics express
- 2014

Measurements show, that the light emitted from the quantum dot when it is resonantly excited possess a very low multi-photon content, and the non-Gaussian nature of the quantum state emitted from a single quantum dot is demonstrated.

Single and entangled photon manipulation for photonic quantum technologies

- Physics
- 2018

Classical computing is insufficient to solve specific problems which have exponentially increased complexity with the problem scale. Meanwhile, in practical circumstance, classical communication…

Integrated sources of photon quantum states based on nonlinear optics

- Physics, MedicineLight, science & applications
- 2017

Recent advances in the realisation of integrated sources of photonic quantum states are reviewed, focusing on approaches based on nonlinear optics that are compatible with contemporary optical fibre telecommunications and quantum memory platforms as well as with chip-scale semiconductor technology.

## References

SHOWING 1-10 OF 123 REFERENCES

A scheme for efficient quantum computation with linear optics

- Physics, MedicineNature
- 2001

It is shown that efficient quantum computation is possible using only beam splitters, phase shifters, single photon sources and photo-detectors and are robust against errors from photon loss and detector inefficiency.

Resource-efficient linear optical quantum computation.

- Physics, MedicinePhysical review letters
- 2005

This work introduces a scheme for linear optics quantum computation, that makes no use of teleported gates, and requires stable interferometry over only the coherence length of the photons, and demonstrates the universality and usefulness of generic parity measurements.

Deterministic linear optics quantum computation with single photon qubits.

- Physics, MedicinePhysical review letters
- 2003

An efficient scheme for quantum computation with linear optical elements, where the qubits are encoded in single photon states, that reduces the resources required per logical gate by several orders of magnitude and the resource overhead per gate is independent of the length of the computation.

High-speed linear optics quantum computing using active feed-forward

- Physics, MedicineNature
- 2007

It is demonstrated that, for a perfect cluster state and no photon loss, the one-way quantum computation scheme would operate with good fidelity and that the feed-forward components function with very high speed and low error for detected photons.

Optical quantum computation using cluster States.

- Physics, MedicinePhysical review letters
- 2004

An approach to optical quantum computation in which a deterministic entangling quantum gate may be performed using a few hundred coherently interacting optical elements using the abstract cluster-state model of quantum computation.

Repeat-until-success quantum computing using stationary and flying qubits (14 pages)

- Physics
- 2006

We introduce an architecture for robust and scalable quantum computation using both stationary qubits (e.g., single photon sources made out of trapped atoms, molecules, ions, quantum dots, or defect…

Demonstration of an all-optical quantum controlled-NOT gate

- Materials Science, MedicineNature
- 2003

An unambiguous experimental demonstration and comprehensive characterization of quantum CNOT operation in an optical system that produces all four entangled Bell states as a function of only the input qubits' logical values, for a single operating condition of the gate.

Fault-tolerant quantum communication based on solid-state photon emitters.

- Physics, MedicinePhysical review letters
- 2006

A novel protocol for a quantum repeater that enables long-distance quantum communication through realistic, lossy photonic channels by incorporating active purification of arbitrary errors at each step of the protocol using only two qubits at each repeater station.

Fault-tolerant quantum computation with cluster states

- Physics
- 2005

The one-way quantum computing model introduced by Raussendorf and Briegel [Phys. Rev. Lett. 86, 5188 (2001)] shows that it is possible to quantum compute using only a fixed entangled resource known…

Indistinguishable photons from a single-photon device

- Physics, MedicineNature
- 2002

It is found that consecutive photons are largely indistinguishable, with a mean wave-packet overlap as large as 0.81, making this source useful in a variety of experiments in quantum optics and quantum information.