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Measurement-free preparation of grid states
Jacob Hastrup, Kimin Park, Jonatan Bohr Brask +2
Quantum computing potentially offers exponential speed-ups over classical computing for certain tasks. A central, outstanding challenge to making quantum computing practical is to…
Deterministic generation of a four-component optical cat state
Jacob Hastrup, Jonas Schou Neergaard-Nielsen, Ulrik Lund Andersen
The four-component cat state represents a particularly useful quantum state for realizing fault-tolerant continuous variable quantum computing. While such encoding has been experim…
Cavity-Enhanced Photon Emission from a Single Germanium-Vacancy Center in a Diamond Membrane
Rasmus Høy Jensen, Erika Janitz, Yannik Fontana +9
The nitrogen-vacancy center in diamond has been explored extensively as a light-matter interface for quantum information applications, however it is limited by low coherent photon…
Boosting the secret key rate in a shared quantum and classical fibre communication system
Davide Bacco, Beatrice Da Lio, Daniele Cozzolino +14
During the last 20 years, the advance of communication technologies has generated multiple exciting applications. However, classical cryptography, commonly adopted to secure curren…
Tomography of a Feedback Measurement with Photon Detection
Shuro Izumi, Jonas S. Neergaard-Nielsen, Ulrik L. Andersen
Quantum measurement is essential to both the foundations and practical applications of quantum information science. Among many possible models of quantum measurement, feedback meas…
A Compact, Mobile, Low-Threshold Squeezed Light Source
Jens Arnbak, Christian Scheffmann Jacobsen, Rayssa Bruzaca de Andrade +4
Strongly squeezed light finds many important applications within the fields of quantum metrology, quantum communication and quantum computation. However, due to the bulkiness and c…