Quo Vadis 2019

Quantum TechnologiesFundamentals and concepts for novel quantum devices

One of the main driving forces for top-down nanofabrication is to design the light-matter interaction in metamaterials and to improve the optical and transport properties of materials by applying quantum effects, but also by controlling external constraints such as spatial dimension and strain. Spectroscopy and scattering techniques are our main tools to investigate the respective 'modified' structures, which provide the bases for improving the performance of electronic and opto-electronic devices.

Our scientific agenda derives from the synthesis of our knowledge of “old” materials, such as silicon, germanium, as well as correlated electron systems, and new concepts from the quantum information science and technology.

The QT group employs PSI’s large-scale facilities to study many-body phenomena in quantum matter and to engineer novel nanostructured devices. Our activities nucleate at the infrared (IR) beamline of the Swiss Light Source (SLS) synchrotron, the clean room of the Laboratory for Micro and Nanotechnology,  where we set the ground for ultrafast x-ray spectroscopy and scattering experiments in high magnetic fields and low temperatures at the SwissFEL x-ray free-electron laser.

 

Rare-earth quantum magnets

 

Nonlinear magnonics

 

 

2D semiconductor devices

 

 

Strained Germanium laser

 

 

Imaging quantum many-body physics

 

CDW-based memory devices

 

Bosonic quantum error correction with superconducting circuits

We are currently looking for motivated candidates for

Master thesis: Measurement system for time-dependent magnetic moments of coherent superposition states,  contact Dr. Guy Matmon

PSI-FELLOW-III-3i postdoctoral program:

  • Project Novel fabrication methods and materials for superconducting quantum circuits, contact Dr. Alexander Grimm
  • Project Generation and use of phase-locked ultrafast X-ray pulses, contact Dr. Bill Pedrini

In addition to advertised positions, we always welcome applications from highly motivated and skilled candidates.

24 August 2020
Cat Qubit 2

Scientists develop a new kind of qubit based on the concept of Schrödinger’s cat

Scientists in the Applied Physics department of Yale University – one of the leading authors, Alexander Grimm, has in the meantime relocated to PSI – have developed a new device that combines the Schrödinger’s cat concept of superposition (a physical system existing in two states at once) with the ability to fix some of the trickiest errors in a quantum computation.

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12 August 2020
adrian_fig3

Efficient analysis method for multiplet lines in Fourier space

In his first paper as lead author, LMN PhD student Adrian Beckert and co-authors demonstrate an algorithm which takes advantage of peak multiplicity to retrieve line shape information. The results were published in Optics Express and are relevant to a wide range of topics, ranging from neutron-scattering to spectroscopy of rare-earth doped solids.

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1 July 2019
LaserImage

First demonstration of a Germanium laser

Scientist at the Paul Scherrer Institut and ETH Zürich, with colleagues from CEA Grenoble, have demonstrated and characterized a technology that, for the first time, yields lasing from strained elemental Germanium. This achievement underlines PSI’s leading role in the development of Silicon-compatible laser light sources.

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7 July 2017
teaserbild.jpg

Scientists get first direct look at how electrons ‘dance’ with vibrating atoms

Scientists at the SLAC National Accelerator Laboratory and Stanford University - one of the leading authors, Simon Gerber, has in the meantime relocated to PSI - have made the first direct measurements, and by far the most precise ones, of how electrons move in sync with atomic vibrations rippling through an quantum material, in the present study an unconventional superconductor, as if they were “dancing" to the same beat.

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7 July 2017

Research experience from California benefits Swiss X-ray free-electron laser SwissFEL

Media Releases Large Research Facilities Matter and Material SwissFEL

An X-ray free-electron laser (XFEL) is capable of visualizing extremely fast structural and electronic processes. Pilot experiments will take place at the PSI's Swiss Free-Electron Laser (SwissFEL) from the end of 2017 on. Two current publications in Science and Nature Communications demonstrate the kind of outstanding scientific work that is enabled by such facilities. The work was carried out at the Linac Coherent Light Source (LCLS) in California. Two of the leading authors behind these studies have now relocated to the PSI in order to share their expertise as SwissFEL expands its capabilities.

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Simon Gerber

Laboratory for Micro-
and Nanotechnology
Paul Scherrer Institut
5232 Villigen PSI
Switzerland

Telephone:
+41 56 310 3965
Telefax:
+41 56 310 2646
E-mail: simon.gerber@psi.ch

SwissFEL

IR Beamline at SLS

Quantum Technologies Collaboration at PSI (QTC@PSI)

A nucleation point of PSI competences towards the quantum technology initiative