Weber number and the outcome of binary collisions between quantum
droplets
- URL: http://arxiv.org/abs/2202.05939v1
- Date: Sat, 12 Feb 2022 00:14:04 GMT
- Title: Weber number and the outcome of binary collisions between quantum
droplets
- Authors: J. E. Alba-Arroyo, S. F. Caballero-Benitez, R. Jauregui
- Abstract summary: Droplets formed from dilute Bose gases made up from binary mixtures of ultra cold atoms are considered.
Atoms losses of the droplets derived from self-evaporation and three-body scattering are quantified.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: A theoretical analysis of binary collisions of quantum droplets under
feasible experimental conditions is reported. Droplets formed from degenerate
dilute Bose gases made up from binary mixtures of ultra cold atoms are
considered. Reliable expressions for the surface tension of the droplets are
introduced based on a study of low energy excitations of their ground state
within the random phase approximation. Their relevance is evaluated considering
an estimation of the expected excitation energy having in mind the Thouless
variational theorem. The surface tension expressions allow calculating the
Weber number of the droplets involved in the collisions. Several regimes on the
outcomes of the binary frontal collisions that range from the coalescence of
the quantum droplets to their disintegration into smaller droplets are
identified. Atoms losses of the droplets derived from self-evaporation and
three-body scattering are quantified for both homo- and hetero-nuclear
mixtures. Their control is mandatory for the observation of some interesting
effects arising from droplets collisions.
Related papers
- Production and stabilization of a spin mixture of ultracold dipolar Bose gases [39.58317527488534]
We present experimental results for a mixture composed of the two lowest Zeeman states of $162$Dy atoms.
Due to an interference phenomenon, the rate for such inelastic processes is dramatically reduced with respect to the Wigner threshold law.
arXiv Detail & Related papers (2024-07-11T17:37:01Z) - Measuring the Evolution of Entanglement in Compton Scattering [101.11630543545151]
The behavior of quantum entanglement during scattering is identical to the behavior of initially classically correlated photons up to a constant factor equal to two.
Our dedicated experiment with photons confirms these results and explains the "Puzzle of Decoherence" observed recently.
arXiv Detail & Related papers (2024-06-20T14:21:23Z) - The strongly driven Fermi polaron [49.81410781350196]
Quasiparticles are emergent excitations of matter that underlie much of our understanding of quantum many-body systems.
We take advantage of the clean setting of homogeneous quantum gases and fast radio-frequency control to manipulate Fermi polarons.
We measure the decay rate and the quasiparticle residue of the driven polaron from the Rabi oscillations between the two internal states.
arXiv Detail & Related papers (2023-08-10T17:59:51Z) - Quantum droplets with particle imbalance in one-dimensional optical
lattices [0.0]
We study the formation of particle-imbalanced quantum droplets in a one-dimensional optical lattice containing a binary bosonic mixture at zero temperature.
In contrast to the particle-balanced case, not all bosons are paired, resulting in an interplay between bound states and individual atoms.
Remarkably, the unpaired particles on top of the quantum droplet effectively form a super Tonks-Girardeau (hard-rod) gas.
arXiv Detail & Related papers (2023-06-21T14:11:15Z) - Observation of false vacuum decay via bubble formation in ferromagnetic
superfluids [47.187609203210705]
In quantum field theory, the decay of an extended metastable state into the real ground state is known as false vacuum decay''
Here, we observe bubble nucleation in isolated and highly controllable superfluid atomic systems.
arXiv Detail & Related papers (2023-05-09T07:41:08Z) - Rotational dynamics induced by low energy binary collisions of quantum
droplets [0.0]
We focus on quantum droplets formed by dilute Bose gases made up from binary mixtures of alkaline atoms.
The stability of the ground state is known to be longer for the chosen heteronuclear gases than for the homonuclear ones.
arXiv Detail & Related papers (2023-04-06T21:21:41Z) - Entanglement of annihilation photons [141.5628276096321]
We present the results of a new experimental study of the quantum entanglement of photon pairs produced in positron-electron annihilation at rest.
Despite numerous measurements, there is still no experimental proof of the entanglement of photons.
arXiv Detail & Related papers (2022-10-14T08:21:55Z) - Neutrino mixing and oscillations in quantum field theory: a
comprehensive introduction [0.0]
We show that the quantum field theoretical framework, where flavor vacuum is defined, permits to give a precise definition of flavor states.
We show that the gauge theory structure underlies the neutrino mixing phenomenon and that there exist entanglement between mixed neutrinos.
arXiv Detail & Related papers (2021-11-23T11:51:43Z) - Observation-dependent suppression and enhancement of two-photon
coincidences by tailored losses [68.8204255655161]
Hong-Ou-Mandel (HOM) effect can lead to a perfect suppression of two-particle coincidences between the output ports of a balanced beam splitter.
In this work, we demonstrate experimentally that the two-particle coincidence statistics of two bosons can instead be seamlessly tuned to substantial enhancement.
Our findings reveal a new approach to harnessing non-Hermitian settings for the manipulation of multi-particle quantum states.
arXiv Detail & Related papers (2021-05-12T06:47:35Z) - Long-distance entanglement of purification and reflected entropy in
conformal field theory [58.84597116744021]
We study entanglement properties of mixed states in quantum field theory via entanglement of purification and reflected entropy.
We find an elementary proof that the decay of both, the entanglement of purification and reflected entropy, is enhanced with respect to the mutual information behaviour.
arXiv Detail & Related papers (2021-01-29T19:00:03Z) - Quantum dynamics on a lossy non-Hermitian lattice [12.373452169290541]
We investigate quantum dynamics of a quantum walker on a finite bipartite non-Hermitian lattice.
Quantum walker initially located on one of the non-leaky sites will finally disappear after a length of evolution time.
The intriguing behavior of the resultant decay probability distribution is intimately related to the existence and specific property of edge states.
arXiv Detail & Related papers (2020-11-15T03:51:13Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.