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Quantum Simulations & Quantum Networks

Monday, November 13, 2017

How can we use quantum technology to tackle problems from high energy physics?

Rendering a quantum interactionDr. Christine Muschik recently joined the Department of Physics & Astronomy and the IQC. Her research addresses the question: How can we use quantum technology to tackle problems from high energy physics?

The first quantum revolution taught us the working principles of the quantum world. Now we are in the midst of a second quantum revolution.  We are learning how to exploit these new rules to build quantum computing devices that are more powerful than their classical counterparts. Christine’s group develops concepts and protocols to simulate so-called gauge theories on quantum computers.

A gauge describes the fundamental interactions between elementary particles and are the backbone of the standard model of particle physics. A prominent example of a gauge theory is quantum chromodynamics. QCD describes the interaction between quarks and gluons. Due to fundamental reasons, the calculation of dynamical processes within such theories is difficult. This limits simulations that can be performed on classical computers to date and inspired the idea to use quantum simulators.

Our long-term vision is to gain insight to problems that cannot be addressed with existing methods, including fundamental questions relating to heavy ion collisions, the interior of neutron stars or the early universe. In the shorter term, our goal is to develop the concepts and technology for this new type of quantum simulator that leads to proof-of-concept experiments. Our work led already to a first experiment in this area (see links below).

Links

https://www.scientificamerican.com/article/in-a-first-quantum-computer-simulates-high-energy-physics/

https://www.nature.com/articles/nature18318

http://www.nature.com/news/quantum-computer-makes-first-high-energy-physics-simulation-1.20136

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