Zobrazeno 1 - 10
of 191
pro vyhledávání: '"Kokkelmans, S."'
Encoding quantum information in a quantum error correction (QEC) code enhances protection against errors. Imperfection of quantum devices due to decoherence effects will limit the fidelity of quantum gate operations. In particular, neutral atom quant
Externí odkaz:
http://arxiv.org/abs/2409.04324
Publikováno v:
Phys. Rev. Research 6, 043016 (2024)
Theoretical treatments of non-equilibrium dynamics in strongly interacting Bose-Fermi mixtures are complicated by the inherent non-Gaussian nature of the vacuum two-body physics, invalidating the typical Hartree-Fock-Bogoliubov approximation. Here, w
Externí odkaz:
http://arxiv.org/abs/2407.09176
Publikováno v:
Few-Body Syst 65, 85 (2024)
We give a detailed and self-contained description of a recently developed theoretical and numerical method for the simulation of three identical bosonic alkali-metal atoms near a Feshbach resonance, where the Efimov effect is induced. The method is b
Externí odkaz:
http://arxiv.org/abs/2405.03504
Autor:
Dyke, P., Musolino, S., Kurkjian, H., Ahmed-Braun, D. J. M., Pennings, A., Herrera, I., Hoinka, S., Kokkelmans, S. J. J. M. F., Colussi, V. E., Vale, C. J.
Symmetry-breaking phase transitions are central to our understanding of states of matter. When a continuous symmetry is spontaneously broken, new excitations appear that are tied to fluctuations of the order parameter. In superconductors and fermioni
Externí odkaz:
http://arxiv.org/abs/2310.03452
Publikováno v:
Phys. Rev. Lett. 132, 133402 (2024)
We resolve the unexpected and long-standing disagreement between experiment and theory in the Efimovian three-body spectrum of Li-7, commonly referred to as the lithium few-body puzzle. Our results show that the discrepancy arises out of the presence
Externí odkaz:
http://arxiv.org/abs/2309.13128
The state $|\psi(t)\rangle$ of a closed quantum system evolves under the Schr\"{o}dinger equation, where the reversible evolution of the state is described by the action of a unitary operator $U(t)$ on the initial state $|\psi_0\rangle$, i.e.\ $|\psi
Externí odkaz:
http://arxiv.org/abs/2309.10593
Publikováno v:
Phys. Rev. Research 6, L012056 (2024)
The quenched unitary Bose gas is a paradigmatic example of a strongly interacting out-of-equilibrium quantum system, whose dynamics become difficult to describe theoretically due to the growth of non-Gaussian quantum correlations. We develop a conser
Externí odkaz:
http://arxiv.org/abs/2309.04587
Publikováno v:
Phys. Rev. A 108, 023122 (2023)
In a neutral atom quantum computer, the qubits are individual neutral atoms trapped in optical tweezers. Excitations to Rydberg states form the basis for the entanglement procedure that is at the basis of multi-qubit quantum gates. However, these Ryd
Externí odkaz:
http://arxiv.org/abs/2303.08783
Publikováno v:
Phys. Rev. A 107, 023301 (2023)
We analyse the change in the hyperradial Efimovian three-body potential as the two-body interaction is tuned from the broad to narrow Feshbach resonance regime. Here, it is known from both theory and experiment that the three-body dissociation scatte
Externí odkaz:
http://arxiv.org/abs/2210.14200
We study the post-quench dynamics of unitary Bose gases using a two-channel model, focusing on the effect of variations in the width of the Feshbach resonance due to density changes. We generally find that increasing the density leads to a correspond
Externí odkaz:
http://arxiv.org/abs/2202.05109