8 papers
Quantum Vault: Secure Token Authentication Without Classical State Information Benchmarked on IBMQ
Lucas Tsunaki, Boris Naydenov
Quantum tokens are underlying primitives for quantum money and network proposals, which leverage the no-cloning theorem to realize unforgeable authentication. A relevant but overlo…
Quantum Gates via Dynamical Decoupling of Central Qubit on IBMQ and 15NV Center in Diamond
Lucas Tsunaki, Michael Dotan, Kseniia Volkova +1
We demonstrate a hardware-agnostic protocol for realizing fast, high-fidelity gates through dynamical decoupling (DD) pulse sequences applied to a central qubit coupled to target q…
Digital Twin Simulations Toolbox of the Nitrogen-Vacancy Center in Diamond
Lucas Tsunaki, Anmol Singh, Sergei Trofimov +1
The nitrogen-vacancy (NV) center in diamond is a crucial platform for quantum technologies, where its precise numerical modeling is indispensable for the continued advancement of t…
Security Analysis of Ensemble-Based Quantum Token Protocol Under Advanced Attacks
Bernd Bauerhenne, Lucas Tsunaki, Jan Thieme +2
We present and characterize advanced attacks on an ensemble-based quantum token protocol that allows for implementing non-clonable quantum coins. Multiple differently initialized t…
Ensemble-Based Quantum Token Protocol Benchmarked on IBM Quantum Processors
Lucas Tsunaki, Bernd Bauerhenne, Malwin Xibraku +3
Quantum tokens envision to store unclonable quantum states in a physical device, with the goal of being used for personal authentication protocols, as required by banks. Still, the…
Local nanoscale probing of electron spins using NV centers in diamond
Sergei Trofimov, Christos Thessalonikios, Victor Deinhart +5
Substitutional nitrogen atoms in a diamond crystal (P1 centers) are, on one hand, a resource for creation of nitrogen-vacancy (NV) centers, that have been widely employed as nanosc…