A two-qubit photonic quantum processor and its application to solving systems of linear equations

Autor(en)

Stefanie Barz, Ivan Kassal, Martin Ringbauer, Yannick Ole Lipp, Borivoje Dakic, Alan Aspuru-Guzik, Philip Walther

Abstrakt

Large-scale quantum computers will require the ability to apply long sequences of entangling gates to many qubits. In a photonic architecture, where single-qubit gates can be performed easily and precisely, the application of consecutive two-qubit entangling gates has been a significant obstacle. Here, we demonstrate a two-qubit photonic quantum processor that implements two consecutive CNOT gates on the same pair of polarisation-encoded qubits. To demonstrate the flexibility of our system, we implement various instances of the quantum algorithm for solving of systems of linear equations.

Organisation(en)

Quantenoptik, Quantennanophysik und Quanteninformation

Externe Organisation(en)

Harvard University, University of Queensland

Journal

Scientific Reports

Band

4

Anzahl der Seiten

5

ISSN

2045-2322

DOI

https://doi.org/10.1038/srep06115

Publikationsdatum

08-2014

Peer-reviewed

Ja

ÖFOS 2012

103025 Quantenmechanik, 103019 Mathematische Physik

Schlagwörter

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/362dee14-8c3e-493a-a459-56acf0731385