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Quantum Repeater using Two-Mode Squeezed States and Atomic Noiseless Amplifiers
Anders J. E. Bjerrum, Jonatan B. Brask, Jonas S. Neergaard-Nielsen +1
We perform a theoretical investigation into how a two-mode squeezed vacuum state, that has undergone photon loss, can be stored and purified using noiseless amplification with a co…
Machine learning based joint polarization and phase compensation for CV-QKD
Hou-Man Chin, Adnan E. Hajomer, Nitin Jain +2
We investigated a machine learning method for joint estimation of polarization and phase for use in a Gaussian modulated CV-QKD system, over an 18 hour period measured on a install…
Sensing of magnetic field effects in radical-pair reactions using a quantum sensor
Deepak Khurana, Rasmus H. Jensen, Rakshyakar Giri +4
Magnetic field effects (MFE) in certain chemical reactions have been well established in the last five decades and are attributed to the evolution of transient radical-pairs whose…
Microscopic-scale recording of brain neuronal electrical activity using a diamond quantum sensor
Nikolaj Winther Hansen, James Luke Webb, Luca Troise +13
An important tool in the investigation of the early stages of neurodegenerative disease is the study of dissected living tissue from the brain of an animal model. Such investigatio…
Charge stability and charge-state-based spin readout of shallow nitrogen-vacancy centers in diamond
Rakshyakar Giri, Rasmus H. Jensen, Deepak Khurana +8
Spin-based applications of the negatively charged nitrogen-vacancy (NV) center in diamonds require efficient spin readout. One approach is the spin-to-charge conversion (SCC), rely…
Ultra-coherent nanomechanical resonators based on density phononic crystal engineering
Dennis Høj, Ulrich Busk Hoff, Ulrik Lund Andersen
Micro- and nanomechanical systems with exceptionally low dissipation rates are enabling the next-generation technologies of ultra-sensitive detectors and quantum information system…