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Electromagnetic counterparts of compact object mergers powered by the radioactive decay of r‐process nuclei
The most promising astrophysical sources of kHz gravitational waves (GWs) are the inspiral and merger of binary neutron star(NS)/black hole systems. Maximizing the scientific return of a GW detection…
Neutrino-induced nucleosynthesis of A>64 nuclei: the nu p process.
In this process, antineutrino absorptions in the proton-rich environment produce neutrons that are immediately captured by neutron-deficient nuclei, allowing for the nucleosynthesis of nuclei with mass numbers A>64, , making this process a possible candidate to explain the origin of the solar abundances of (92,94)Mo and (96,98)Ru.
Composition of the Innermost Core-Collapse Supernova Ejecta
With currently known input physics and computer simulations in one dimension, a self-consistent treatment of core-collapse supernovae does not yet lead to successful explosions, while two-dimensional…
Competition between pairing and ferromagnetic instabilities in ultracold Fermi gases near Feshbach resonances.
An effective interaction is obtained that takes into account both Pauli blocking and the energy dependence of the scattering amplitude near a Feshbach resonance, and the competing instabilities towards Stoner ferromagnetism and pairing are analyzed.
THE ROLE OF FISSION IN NEUTRON STAR MERGERS AND ITS IMPACT ON THE r-PROCESS PEAKS
M. Eichler, A. Arcones, A. Kelic, O. Korobkin, K. Langanke, T. Marketin, G. Martinez-Pinedo, I. Panov, T. Rauscher, S. Rosswog, C. Winteler, N. T. Zinner, and F. K. Thielemann, ‘The role of fission…
Strongly interacting confined quantum systems in one dimension.
- A. Volosniev, D. Fedorov, A. Jensen, M. Valiente, N. Zinner
- PhysicsNature communications
- 19 June 2013
This work proves that 1D fermionic and bosonic systems with strong short-range interactions are solvable in arbitrary confining geometries by introducing a new energy-functional technique and obtaining the full spectrum of energies and eigenstates.
Analytic harmonic approach to the N-body problem
We consider an analytic way to make the interacting N-body problem tractable by using harmonic oscillators in place of the relevant two-body interactions. The two-body terms of the N-body Hamiltonian…
Fermionization of two-component few-fermion systems in a one-dimensional harmonic trap
The nature of strongly interacting Fermi gases and magnetism is one of the most important and studied topics in condensed-matter physics. Still, there are many open questions. A central issue is…
Single-step implementation of high-fidelity n -bit Toffoli gates
- S. Rasmussen, K. Groenland, R. Gerritsma, K. Schoutens, N. Zinner
- PhysicsPhysical Review A
- 17 October 2019
The family of $n$-bit Toffoli gates, with the two-bit Toffoli gate as the figurehead, are of great interest in quantum information as they can be used as universal gates and in quantum error…
Universal relations for the two-dimensional spin-1/2 Fermi gas with contact interactions
We present universal relations for a two-dimensional Fermi gas with pairwise contact interactions. The derivation of these relations is made possible by obtaining the explicit form of a generalized…