The Quantum Way of Sensing

Event Sponsor: 
Director's Special Colloquim The Quantum Way of Sensing
Start Date: 
Feb 11 2016 - 10:30am
Building 402 Auditorium
Argonne National Laboratory
Jörg Wrachtrup
Speaker(s) Title: 
Universität Stuttgart

The precision of any measurement is limited by quantum mechanics. Yet, in practice, hardly any measurement reaches its quantum limits. This is because typically, dephasing influences the measurement device, rendering sensitivity below its physical limits. A new class of quantum sensors based on spin defects in materials like diamond; however, reach quantum-limited precision even under ambient conditions. Such sensors, e.g. allow for very precise detection of quantities like magnetic and electric fields, temperature and pressure. They have e.g. detected single electron or even nuclear magnetic moments in such complex environment as living cells. In the talk, he will introduce the basic physical concept of the quantum spin sensors and describe recent applications.

Miscellaneous Information: 

Professor Jörg Wrachtrup is an internationally recognized expert in the field of solid state quantum optics and spintronics. He counts as a pioneer in the field of solid state spin quantum physics and has explored applications in photonics, spintronics, quantum computing and quantum metrology.

His research activities comprise material science in carbon-based systems, mostly diamond. There, he is active in fabricating photonic as well as electronic structures like dedicated electroluminescence devices for single photon emission. He is also pursuing interdisciplinary research, mainly towards biophysical and bioanalytical applications of diamond-based quantum sensors.

Professor Wrachtrup is author of over 250 papers with more than 8,000 citations. He received a number of prizes, among them an ERC Grant for Advanced Investigators, the Gottfried Wilhelm Leibniz Prize, the Humboldt award of the Max Planck – and Humboldt Societies, and most recently the Carl ZEISS research award.

Shuttle service and refreshments will be provided.