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pro vyhledávání: '"A Graefe"'
In current electronic structure research endeavors such as warm dense matter or machine learning applications, efficient development necessitates non-monolithic software, providing an extendable and flexible interface. The open-source idea offers the
Externí odkaz:
http://arxiv.org/abs/2410.19438
Autor:
Töpfer, Sebastian, Tovar, Sergio, Torres, Josué R. León, Derr, Daniel, Giese, Enno, Fuenzalida, Jorge, Gräfe, Markus
Utilizing nonlinear interferometers for sensing with undetected light enables new sensing and imaging techniques in spectral ranges that are difficult to detect. To enhance this method for future applications, it is advantageous to extract both ampli
Externí odkaz:
http://arxiv.org/abs/2410.17239
When a chemical bond is broken, the molecular structure undergoes a transformation. An ideal experiment should probe the change in the electronic and nuclear structure simultaneously. Here, we present a method for the simultaneous time-resolved imagi
Externí odkaz:
http://arxiv.org/abs/2410.07088
Visibility Stokes parameters as a foundation for quantum information science with undetected photons
The phenomenon of induced coherence without induced emission allows to reconstruct the quantum state of a photon that remains undetected. The state information is transferred to its partner photon via optical coherence. Using this phenomenon, a numbe
Externí odkaz:
http://arxiv.org/abs/2409.10740
The emergence of classical behaviour in quantum theory is often ascribed to the interaction of a quantum system with its environment, which can be interpreted as environmental monitoring of the system. As a result, off-diagonal elements of the densit
Externí odkaz:
http://arxiv.org/abs/2406.19628
Autor:
Krstić, Aleksa, Gäbler, Tobias Bernd, Jain, Nitish, Then, Patrick, Gili, Valerio Flavio, Saravi, Sina, Setzpfandt, Frank, Eggeling, Christian, Gräfe, Markus
Entangled two-photon absorption can enable a linear scaling of fluorescence emission with the excitation power. In comparison to classical two-photon absorption with a quadratic scaling, this can allow fluorescence imaging or photolithography with hi
Externí odkaz:
http://arxiv.org/abs/2406.01075
Publikováno v:
Opt. Lett. 49, 5467-5470 (2024)
We present an experimental implementation of a polarization-entangled photon pair source based on beam displacers. The down-converted photons are emitted via spontaneous parametric down-conversion in a non-degenerate and type-0 process. We obtain a s
Externí odkaz:
http://arxiv.org/abs/2405.04360
Autor:
León-Torres, Josué R., Krajinić, Filip, Kumar, Mohit, Basset, Marta Gilaberte, Setzpfandt, Frank, Gili, Valerio Flavio, Jelenković, Branislav, Gräfe, Markus
Quantum imaging with undetected light (QIUL) can retrieve amplitude and phase information of an object by exploiting the quantum correlations of photon-pairs generated through spontaneous parametric down conversion (SPDC), where the illumination and
Externí odkaz:
http://arxiv.org/abs/2404.17370
Publikováno v:
PMLR 242:349-360, 2024
Model Predictive Control (MPC) is a method to control nonlinear systems with guaranteed stability and constraint satisfaction but suffers from high computation times. Approximate MPC (AMPC) with neural networks (NNs) has emerged to address this limit
Externí odkaz:
http://arxiv.org/abs/2404.05835
Autor:
Korolev, Viacheslav, Lettau, Thomas, Krishna, Vipin, Croy, Alexander, Zuerch, Michael, Spielmann, Christian, Waechtler, Maria, Peschel, Ulf, Graefe, Stefanie, Soavi, Giancarlo, Kartashov, Daniil
High-order harmonic generation (HHG) in solids is profoundly influenced by the dephasing of the coherent electron-hole motion driven by an external laser field. The exact physical mechanisms underlying this dephasing, crucial for accurately understan
Externí odkaz:
http://arxiv.org/abs/2401.12929