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15 papers · 2 filters
Activating hidden metrological usefulness
Géza Tóth, Tamás Vértesi, Paweł Horodecki +1
We consider bipartite entangled states that cannot outperform separable states in any linear interferometer. Then, we show that these states can still be more useful metrologically…
High-order harmonics as induced by a quantized field:a phase-space picture
Ákos Gombkötő, Sándor Varró, Péter Mati +1
The interaction of matter with a quantized electromagnetic mode is considered. Representing a strong exciting field, the mode is assumed to contain a large number of photons. As a…
Spontaneous Wave Function Collapse with Frame Dragging and Induced Gravity
Lajos Diósi
I impose the Newtonian criteria of inertial frames on the c.o.m. trajectories of massive objects undergoing spontaneous collapse of their wave function. The corresponding modificat…
On the Universality of the Quantum Approximate Optimization Algorithm
Mauro E. S. Morales, Jacob Biamonte, Zoltán Zimborás
The quantum approximate optimization algorithm (QAOA) is considered to be one of the most promising approaches towards using near-term quantum computers for practical application.…
{\textit{Ab initio} determination of pseudospin for paramagnetic defects in SiC
András Csóré, Adam Gali
Paramagnetic point defects in solids may exhibit a rich set of interesting and not yet fully resolved physics. In particular, character of wavefunctions and electron-phonon couplin…
Spectroscopic Investigations of Negatively Charged Tin-Vacancy Centres in Diamond
Johannes Görlitz, Dennis Herrmann, Gergő Thiering +9
The recently discovered negatively charged tin-vacancy centre in diamond is a promising candidate for applications in quantum information processing (QIP). We here present a detail…