QuaMToME: Microwave quantum tokens in electronic and nuclear spin ensembles
QuaMToME: Microwave quantum tokens in electronic and nuclear spin ensembles
Embedded Files
Quantum communication is set to become an important building block of the secure digital infrastructure in the future society. In quantum communication, the exchange of unconditionally secure cryptographic keys is based on fundamental physical laws. In addition to secure data transmission, quantum communication offers new possibilities for secure user authentication enabled by the concepts of quantum tokens. Analogous to today's common security tokens, such as bank cards, transponders or transaction numbers, quantum tokens can be used to validate various forms of communication, while being unconditionally secure against eavesdropping. On the way to implementation of microwave quantum tokens, it is required to develop key building blocks: reliable routines and devices for their generation and long-living scalable quantum memories for their storage. The aforementioned two tasks are central goals of the current project.
Implementation of optical approaches in microwave quantum memory systems
Implementation of optical approaches in microwave quantum memory systems
The current project aims at developing a quantum memory system based on rare-earth spin ensembles. Such quantum memory elements should work at zero magnetic field at ultra-low temperatures.
Microwave spectral hole burning
Microwave spectral hole burning
Spectral hole burning in the microwave regime.
Finished projects
Finished projects
Electromagnetically induced transparency below 1 K
Electromagnetically induced transparency below 1 K
Electromagnetically induced transparency in this experiment has been observed at the magnetic field of 20 mT in the magnetically non-quite LYF-crystal below 1 K.
Another peculiarity of this experiment is realization of the experimental setup, which employed tools of microwave photonics.
Active period: 2018-2020
Optical coherence below 1 K
Optical coherence below 1 K
Optical coherence of Erbium spin ensemble was studied in YSO and LYF crystals was studied at ultra-low temperatures ( < 1 K ) and low magnetic fields ( < 300 mT ).
Addtitionaly, potential of low-field ZEFOZ transition has been evaluated.
Active period: 2016 - 2019
Focused Ion Beam Implantation
Focused Ion Beam Implantation
The ion-implantation projects were carried out at Ruhr-University Bochum in the chair of Applied Solid-State Physics.
Work on erbium implantation in YSO crystals was funded by the BMBF QUIMP-Project.
Active period: 2011 - 2015
Page updated
Google Sites
Report abuse