Events

Taehyun Yoon, Columbia University

In the XENON dark matter search experiment, trace contamination of Xe by Kr contributes background events through the beta decay of radioactive Kr-85. To achieve the required sensitivity of the detector, the contamination must be reduced below the part per trillion (ppt) level and this level must be known precisely. We have developed an atom trap trace analysis (ATTA) device using standard atom cooling and trapping techniques to detect Kr below the ppt level.

Gianluigi Catelani, Peter Grünberg Institute, Germany

Superconducting qubits based on Josephson junctions are a promising
platform for quantum computation, reaching quality factors of over one
million. Such high quality factors enable the investigation of
decoherence mechanisms with high accuracy. An intrinsic decoherence
process originates from the coupling between the qubit degree of freedom
and the quasiparticles that tunnel across Josephson junctions. In this
talk I will review the general theory of quasiparticle effects, valid

Gerd Leuchs, Max Planck Institute for the Science of Light

Come for the fun, stay for the science! Bring your friends and family to celebrate International Women's Day with the Laurier Centre for Women in Science (WinS).  

Join us for a fun-filled afternoon featuring science demos, hands-on activities and interactive games. Meet our robot Nao!

Activities will be brought to you by the Centre for Women in Science,  Kitchener Public Library, Desire2Learn, Kwartzlab, Diyode, Institute for Quantum Computing, Savvy Planet, Nerd Nite KW, Brick Works Academy and more.

Enrique Solano, Universidad del País Vasco, Bilbao, Spain

I will introduce the field of quantum simulations from a wide
scientific perspective. Then, I will discuss the relevance of quantum
simulations for reproducing different aspects of quantum physics:
nonrelativistic and relativistic quantum dynamics, physical and unphysical
quantum operations, as well as strong and ultrastrong light-matter
interactions. Finally, I will give examples in the context of trapped-ion
and circuit QED technologies.

Wolfram Pernice, Karlsruhe Institute of Technology, Germany

Nanophotonic devices allow for realizing complex optical functionality that is otherwise difficult to achieve with free-space optical setups. While such circuits find a multitude of applications in telecommunication and optical signal processing, their tremendous potential for non-classical optics remains largely unexplored. I will present an integrated platform in which key challenges of integrated quantum optics are addressed by combining nanophotonic and superconducting nanowire devices with optomechanical resonators.

Guillermo Esteban Romero Huenchuir, University of Basque Country, Spain

In this talk, I will present my past, present, and new projects in the field of circuit quantum electrodynamics. First, I will show a proposal for microwave photodetection and how it has influenced our community to develop experiments and further theoretical developments. Second, I will show the first theoretical proposal of circuit QED with a quantum point contact as a two-level system.

Per Delsing, Chalmers University of Technology Sweden

We present a new type of mechanical quantum device, where propagating surface acoustic wave (SAW) phonons serve as carriers for quantum information. At the core of our device is a superconducting qubit, designed to couple to SAW waves in the underlying substrate through the piezoelectric effect. This type of coupling can be very strong, and in our case exceeds the coupling to any external electromagnetic mode.

John R. Kirtley, Stanford University

Scanning SQUID Microscopy of Topological Insulators

A fellow of both the American Physics Society and the American Association for the Advancement of Sciences, John R. Kirtley is known for developing novel techniques based on scanning Superconducting QUantum Interference Device (SQUID) microscopy.

Francois Le Gall, The University of Tokyo

In this talk I will describe recent progresses in the development of quantum algorithms for matrix multiplication. I will start with the case of Boolean matrices, and discuss the time complexity and query complexity of Boolean matrix multiplication in the quantum setting.