University

Master Thesis Position
Realizing a quantum communication protocol between distant superconducting circuits
Quantum Device Lab, ETHZ

A promising way of scaling up quantum computers based on superconducting circuits is to connect individual quantum processors with each other, in the form of a quantum LAN. In the Quantum Device Laboratory at ETHZ we have built a 30 meter long cryogenic connection between such quantum processors – a setup which is unique in the world. This system allows for the entanglement of distant superconducting qubits, and for establishing quantum communication between them. And that’s where you come into play:

We are looking for a motivated master student who helps us implement such quantum communication protocols. You will get a hands-on experience on the setup, learn the various aspects of it that must come together for the implementation of this experiment, with a focus on chip design & characterization, microwave engineering, and software.Feel free to contact us to get to know us and your potential project in greater detail.

Duration: HS2021 (Starting in fall, exact starting dates are flexible)
Contact: wallraff.office@phys.ethz.chsimon.storz@phys.ethz.ch


Looking for a programmer
Photonics Lab, ETHZ.

The Photonics Lab is looking for a passionate programmer to help develop tools for controlling and monitoring our experiments in optical trapping using Python. You will work at the device – software interface (USB, Ethernet) and stream data to a server. Devices include Raspberry Pi, Arduino, Red Pitaya, but also more sophisticated platforms like Lock-In amplifiers, RF drivers, and Frequency generators.  As a bonus, you get to know our lab environment and (if interested) learn about laser optics. Requirements: Good programming skills in Python. C/C++ and experience with network programming and device interfacing is a plus.

Contact: Felix Tebbenjohanns (tefelix@ethz.ch)


PhD position in “Long-distance spin-photon entanglement”
University of Geneva
Click for more information


Master Thesis Position
Towards building a novel ion-trap array for quantum simulation in the NISQ regime
TIQI Group, ETHZ

The Noisy Intermediate-Scale Quantum (NISQ) era is the next frontier of quantum simulation and quantum computing, comprising devices on the order of ~100 qubits, with capabilities beyond the best of today’s classical computers. Trapped-ion chains in radio-frequency traps have realised some of the highest qubit coherence times and quantum gate fidelities, but are typically limited to ~10 qubits due to technical limitations arising from the radio-frequency micromotion. These limitations make it hard to scale up the system into two-dimensional arrangements of ion-based qubits. The IONPEN research project at the TIQI group seeks to address this issue of scalability with the novel approach of cryogenic micro-fabricated planar Penning traps that in principle will be capable of trapping 2-d arrays of hundreds of ion qubits in the absence of micromotion. Currently we are in the process of constructing, characterising and optimising a number of elements of the design of an experimental setup to that end, with the initial goal of trapping ions for the first time. This particular masters project would entail hands-on experimental work on several important aspects that go towards building this novel ion-trap apparatus. These involve working with a cryogenic ultra-high vacuum system within a superconducting magnet, generation and delivery of high-frequency microwave radiation, setup of laser optics and imaging systems, and constructing and testing control electronics.

Duration: FS2021 (Starting dates flexible, but preferably March/April)
Contact: Shreyans Jain (sjain@phys.ethz.ch)