Author:
Barz Stefanie,Kassal Ivan,Ringbauer Martin,Lipp Yannick Ole,Dakić Borivoje,Aspuru-Guzik Alán,Walther Philip
Abstract
Abstract
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.
Publisher
Springer Science and Business Media LLC
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