Special purpose quantum computers in integrated photonics

Add to your list(s) Download to your calendar using vCal

• Dr. Anthony Laing, University of Bristol
• Friday 14 February 2020, 14:30-15:30
• Pippard Lecture Theatre, Cavendish Laboratory, J.J. Thomson Avenue.

If you have a question about this talk, please contact James Craston.

Modelling the dynamics of quantum mechanical systems, including molecules, is generally an intractable problem for classical computers. However, as proposed by Feynman, the exponential computational overheads associated with these simulations may be overcome by utilising a controllable quantum system that can be programmed to mimic the quantum behaviour of a model of interest. Integrated photonics has been established as a platform for quantum information processing. Recent progress in integrated photonics includes programmable circuitry, the integration of photon sources, and single photon detection. Together with high-speed and low-loss photonic switches, a versatile class of photonic quantum simulators becomes a realistic prospect. It is possible that the demands on error correction for specialised quantum computers, such as quantum simulators, could be much lower than those for universal digital quantum computers. For photonics, it is believed that a quantum simulator that can generate and process more than 50 pure photons will significantly outperform a supercomputer. I will discuss experimental demonstrations of quantum photonics as a simulation platform for molecular quantum dynamics. I will cover recent developments in integrated quantum photonics that will help us scale these simulation devices. And I will cover classical emulations techniques that provide important benchmarks.

This talk is part of the Cavendish Quantum Colloquium series.

This talk is included in these lists:

• All Cavendish Laboratory Seminars
• Cavendish Quantum Colloquium
• Centre for Health Leadership and Enterprise
• Featured lists
• ME Seminar
• Neurons, Fake News, DNA and your iPhone: The Mathematics of Information
• Pippard Lecture Theatre, Cavendish Laboratory, J.J. Thomson Avenue
• School of Physical Sciences
• Thin Film Magnetic Talks
• few29

Note that ex-directory lists are not shown.