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6 papers · 1 filter
Coherent regime of Kapitza-Dirac effect with electrons
Kamila Moriová, Petr Koutenský, Neli Laštovičková Streshkova +5
Electron matter waves coherently diffract when passing through a periodic structure of light formed by two interfering light waves. In this so-called Kapitza-Dirac effect, the elec…
Photonic Qubit Gates via 1D Scattering from an Array of Two-Level Emitters
Evangelos Varvelis, Joachim Ankerhold
Photonic quantum computing offers a promising platform for quantum information processing, benefiting from the long coherence times of photons and their ease of manipulation. This…
Towards a unified picture of polarization transfer -- pulsed DNP and chemically equivalent PHIP
Martin C. Korzeczek, Laurynas Dagys, Christoph Müller +7
Nuclear spin hyperpolarization techniques, such as dynamic nuclear polarization (DNP) and parahydrogen-induced polarization (PHIP), have revolutionized nuclear magnetic resonance a…
Implications of pinned occupation numbers for natural orbital expansions. II: Rigorous derivation and extension to non-fermionic systems
Tomasz Maciążek, Adam Sawicki, David Gross +2
We have explained and comprehensively illustrated in Part I that the generalized Pauli constraints suggest a natural extension of the concept of active spaces. In the present Part…
Implications of pinned occupation numbers for natural orbital expansions. I: Generalizing the concept of active spaces
Christian Schilling, Carlos L. Benavides-Riveros, Alexandre Lopes +2
The concept of active spaces simplifies the description of interacting quantum many-body systems by restricting to a neighbourhood of active orbitals around the Fermi level. The re…
Generalized Pauli constraints in small atoms
Christian Schilling, Murat Altunbulak, Stefan Knecht +5
The natural occupation numbers of fermionic systems are subject to non-trivial constraints, which include and extend the original Pauli principle. A recent mathematical breakthroug…