Quantum Photonics with Microwaves in Superconducting Circuits

Programme: Swiss National Science Foundation (SNSF)

In this project we will develop building blocks of a fully deterministic quantum photonics framework in the microwave frequency domain. By exploiting the unique properties of superconducting circuits, we focus on the realization of (i) deterministic photon-photon entangling gates , (ii) sources of cluster states, and (iii)  quantum memories to absorb, store and relieve photons with a controllable time delay. Furthermore, we will advance the development of microwave single photon detectors. The realization of each of these elements addresses fundamental aspects of quantum optics, in particular the interaction, detection and entanglement between individual propagating photons. Furthermore, we expect networks of these elements to enable the generation of two-dimensional cluster states -- a genuine resource for universal quantum computation. As such, the developed experimental framework opens a path towards the exploration of various concepts of quantum information processing, including one-way quantum computing, error correction, quantum repeaters, boson sampling, time-delayed feedback and variational quantum algorithms based on tensor network states.

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Programme: Swiss National Science Foundation (SNSF)

In this project we will develop building blocks of a fully deterministic quantum photonics framework in the microwave frequency domain. By exploiting the unique properties of superconducting circuits, we focus on the realization of (i) deterministic photon-photon entangling gates , (ii) sources of cluster states, and (iii)  quantum memories to absorb, store and relieve photons with a controllable time delay. 

James

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Description

James O'Sullivan will join the Quantum Device Lab in February 2021 as a postdoc. His research will focus on quantum optics interactions in superconducting circuits. He obtained an MPhys degree in physics from the University of Oxford and a PhD in quantum condensed matter physics from University College London, during which he focused on coupling superconducting resonators to ensembles of spins to create a quantum memory.

Position
Phone
+41 44 63 39101
Office
HPF D5
E-mail
james.osullivan@phys.ethz.ch
Last Name
O'Sullivan
Type
Member

Kevin

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Description

Kevin Reuer started as a PhD student in June 2019, working on quantum optics interactions in superconducting qubits. Before, he worked on our FPGA-based systems as a Research Assistant. He previously conducted a master thesis project within the ETH Zurich Master program (MSc ETH Physics) in our group.

Position
Phone
+41 44 63 33481
Office
HPF D5
E-mail
kevin.reuer@phys.ethz.ch
Last Name
Reuer
Type
Member

Jean-Claude

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Description

Jean-Claude Besse is part of the Superconducting Circuits team of the ETH Zurich - PSI Quantum Computing Hub. He joined our group in February 2016 to conduct a PhD thesis, with a focus on quantum optics interactions in superconducting circuits. After successfully defending his thesis in January 2021, Jean-Claude remained with the Quantum Device Lab as a PostDoc. Previously, Jean-Claude worked on cavity optomechanics in the Painter lab at Caltech and on nanomechanical structures for quantum dots coupling with Imamoglu's group at ETH.

Position
Phone
+41 44 63 33116
Office
HPF D17
E-mail
jean-claude.besse@phys.ethz.ch
Last Name
Besse
Type
Member

Christopher

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Description

Christopher Eichler is a Senior Scientist in the Department of Physics at ETH. After obtaining Diploma degrees in Physics and Music, he completed a PhD thesis in the Quantum device lab in 2013 for which he was awarded an ETH Medal. In 2014 he moved on to Princeton University where he was a Dicke postdoctoral fellow until rejoining the Quantum device lab in summer 2016.

Position
Academic Title
Phone
+41 44 63 37124
Office
HPF D2
E-mail
christopher.eichler@phys.ethz.ch
Last Name
Eichler
Type
Member

Andreas

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Description

Since January 2012 Andreas Wallraff is a Full Professor for Solid State Physics in the Department of Physics at ETH Zurich. He joined the department in January 2006 as a Tenure Track Assistant Professor and was promoted to Associate Professor in January 2010. Previously, he has obtained degrees in physics from Imperial College of Science and Technology, London, U.K., Rheinisch Westfälische Technische Hochschule (RWTH) Aachen, Germany and did research towards his Masters degree at the Research Center Jülich, Germany.

Academic Title
Phone
+41 44 63 37563
Office
HPF D8/9
E-mail
andreas.wallraff@phys.ethz.ch
Web
qudev.phys.ethz.ch
Last Name
Wallraff
Type
Member