MIQRO
Materials and Quantum systems
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Our Research Profile
Description of the research focus areas and list of focus areas
Overview
Quantum mechanics is an extremely successful theory that plays a central role not only in physics but also in other natural sciences and has been confirmed by countless experiments. Despite its great success and its history spanning more than a century, the laws and interpretation of quantum mechanics still challenge our intuition, which has been shaped by an environment governed by classical physical laws.
Quantum mechanics not only poses fundamental questions but also offers the opportunity to apply its laws in practical ways. In recent years, researchers have begun to generate and manipulate entangled quantum systems at will, thereby experimentally confirming one of the most counterintuitive predictions of quantum theory: the nonlocal correlation of quantum systems, which A. Einstein described as “spooky action at a distance.”
The creation and manipulation of entangled states are of crucial importance in the field of quantum information processing (QIP) and communication, where fundamental elements of computers based on the laws of quantum mechanics are being explored. A quantum computer would be capable of solving problems that, for all practical purposes, cannot be solved by classical computers and communication devices.
Read more here for a more detailed description of our research.
Research Focus Areas
- Quantum Computing
- Quantum Simulation
- Quantum Control
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RF Radiation for the Coherent Manipulation of Trapped Ions
Quantum Mechanics / Experimental Physics 3 (Winter Semester)
Topics
- Review of Wave Optics
- Interference, Polarization, ...
- Limits of Classical Physics
- Wave-Particle Duality, Bohr's Atomic Model, ...
- Fundamentals of Quantum Mechanics
- Schrödinger’s equation, ...
- Fundamentals of atomic physics
- Hydrogen atom, fine structure, Zeeman effect, ...
Master's Internship in Laser Spectroscopy (Winter Semester)
The goal of this experiment is to explore some fundamental concepts in quantum optics and spectroscopy and to provide a brief introduction to modern setups involving sophisticated lasers and optical components. Such setups, or similar ones, can also be found in the current research being conducted by the Quantum Optics Research Group.
LS Manual—German
LS Manual - English
Advanced Quantum Optics (Summer Semester)
Topics
- Quantum Optics of the Light Field (Quantized Light)
- Quantization of the Electromagnetic Field, Coherent States,...
- Light-Matter Interaction
- Semiclassical / quantized interaction, dressed states, ...
- Control and Cooling
- Quantum gates, entanglement, trapped ions, laser cooling, ...
- Quantum Technologies
- Quantum computing, quantum sensing, ...
Advanced Internship: Paul Trap (Winter Semester)
This experiment also addresses topics relevant to our laboratories. The goal is to understand how the ion traps we use work by examining a macroscopic Paul trap for lycopod spores.
Latest Publications
A list of the most recent publications
Fast, Robust, and Laser-Free Universal Entangling Gates for Trapped-Ion Quantum Computing
Fast, Robust, and Laser-Free Universal Entangling Gates for Trapped-Ion Quantum Computing
Classical Half-Adder using Trapped-ion Quantum Bits: Towards Energy-efficient Computation
Classical Half-Adder using Trapped-ion Quantum Bits: Towards Energy-efficient Computation
Robust two-qubit gates using pulsed dynamical decoupling
Robust two-qubit gates using pulsed dynamical decoupling
Scalable chip-based 3D ion traps
Scalable chip-based 3D ion traps
Contact the Working Group
Postal address
University of Siegen
Chair of Experimental Quantum Optics
Department of Physics – School IV
57068 Siegen
Visitor address
University of Siegen
Chair of Experimental Quantum Optics
ENC - D, Level 3
3 Walter-Flex Street
57072 Siegen
Secretariat
Please contact Prof. Christof Wunderlich.