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6 papers · 2 filters
Radiation-damage-free ghost diffraction with atomic resolution
Zheng Li, Nikita Medvedev, Henry Chapman +1
The X-ray free electron lasers (XFEL) can enable diffractive structural determination of protein crystals or single molecules that are too radiation-sensitive for conventional X-ra…
Quantum chemistry beyond Born-Oppenheimer approximation on a quantum computer: a simulated phase estimation study
Libor Veis, Jakub Višňák, Hiroaki Nishizawa +2
We present an efficient quantum algorithm for beyond-Born-Oppenheimer molecular energy computations. Our approach combines the quantum full configuration interaction method with th…
Priority Choice Experimental Two-qubit Tomography: Measuring One by One All Elements of Density Matrices
Karol Bartkiewicz, Antonín Černoch, Karel Lemr +1
In standard optical tomographic methods, the off-diagonal elements of a density matrix are measured indirectly. Thus, the reconstruction of , even if it is based on linear i…
Fermionic orbital optimisation in tensor network states
C. Krumnow, L. Veis, Ö. Legeza +1
Tensor network states and specifically matrix-product states have proven to be a powerful tool for simulating ground states of strongly correlated spin models. Recently, they have…
Long-time joint spectra and entanglement of two photoelectrons originating in interacting auto-ionization systems
Jan Perina, A. Luks, W. Leonski
Two auto-ionization systems in a stationary optical field mutually interacting via the dipole-dipole interaction are considered. Their evolution is analytically found. Joint spectr…
Temporal steering and security of quantum key distribution with mutually-unbiased bases against individual attacks
Karol Bartkiewicz, Antonín Černoch, Karel Lemr +2
Temporal steering, which is a temporal analogue of Einstein-Podolsky-Rosen steering, refers to temporal quantum correlations between the initial and final state of a quantum system…