Multipolar condensates and multipolar Josephson effects
- URL: http://arxiv.org/abs/2306.14214v2
- Date: Tue, 3 Oct 2023 20:06:43 GMT
- Title: Multipolar condensates and multipolar Josephson effects
- Authors: Wenhui Xu, Chenwei Lv, and Qi Zhou
- Abstract summary: We show that dipole condensates prevail in bosonic systems.
Our findings allow experimentalists to manipulate the phase of a dipole condensate and deliver dipolar Josephson effects.
The self-proximity effects can also be utilized to produce a generic multipolar condensate.
- Score: 2.795829788599092
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: When single-particle dynamics are suppressed in certain strongly correlated
systems, dipoles arise as elementary carriers of quantum kinetics. These
dipoles can further condense, providing physicists with a rich realm to study
fracton phases of matter. Whereas recent theoretical discoveries have shown
that an unconventional lattice model may host a dipole condensate as the ground
state, fundamental questions arise as to whether dipole condensation is a
generic phenomenon rather than a specific one unique to a particular model and
what new quantum macroscopic phenomena a dipole condensate may bring us with.
Here, we show that dipole condensates prevail in bosonic systems. Because of a
self-proximity effect, where single-particle kinetics inevitably induces a
finite order parameter of dipoles, dipole condensation readily occurs in
conventional normal phases of bosons. Our findings allow experimentalists to
manipulate the phase of a dipole condensate and deliver dipolar Josephson
effects, where supercurrents of dipoles arise in the absence of particle flows.
The self-proximity effects can also be utilized to produce a generic multipolar
condensate. The kinetics of the $n$-th order multipoles unavoidably creates a
condensate of the $(n+1)$-th order multipoles, forming a hierarchy of
multipolar condensates that will offer physicists a whole new class of
macroscopic quantum phenomena.
Related papers
- Fermi polaron in atom-ion hybrid systems [0.0]
We investigate the ionic Fermi polaron consisting of a charged impurity interacting with a polarized Fermi bath.
We find a smooth polaron-molecule transition for strong coupling, in contrast with the neutral case, where the transition smoothens only for finite temperature and finite impurity density.
This study may provide valuable insights into alternative solid-state systems such as Fermi excitons polarons in atomically thin semiconductors.
arXiv Detail & Related papers (2024-01-10T18:45:02Z) - Dynamical Spectral Response of Fractonic Quantum Matter [0.0]
We study the low-energy excitations of a constrained Bose-Hubbard model in one dimension.
We show the existence of gapped excitations compatible with strong coupling results.
arXiv Detail & Related papers (2023-10-24T18:00:01Z) - 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) - Dipolar quantum solids emerging in a Hubbard quantum simulator [45.82143101967126]
Long-range and anisotropic interactions promote rich spatial structure in quantum mechanical many-body systems.
We show that novel strongly correlated quantum phases can be realized using long-range dipolar interaction in optical lattices.
This work opens the door to quantum simulations of a wide range of lattice models with long-range and anisotropic interactions.
arXiv Detail & Related papers (2023-06-01T16:49:20Z) - Thermal masses and trapped-ion quantum spin models: a self-consistent approach to Yukawa-type interactions in the $λ\!φ^4$ model [44.99833362998488]
A quantum simulation of magnetism in trapped-ion systems makes use of the crystal vibrations to mediate pairwise interactions between spins.
These interactions can be accounted for by a long-wavelength relativistic theory, where the phonons are described by a coarse-grained Klein-Gordon field.
We show that thermal effects, which can be controlled by laser cooling, can unveil this flow through the appearance of thermal masses in interacting QFTs.
arXiv Detail & Related papers (2023-05-10T12:59:07Z) - Fractonic Luttinger Liquids and Supersolids in a Constrained
Bose-Hubbard Model [0.0]
We show the existence of a variety of exotic quantum phases in the ground states of a Bose-Hubbard model in one dimension.
For integer boson fillings, we perform a mapping of the system to a model of microscopic local dipoles, which are composites of fractons.
We apply a combination of low-energy field theory and large-scale tensor network simulations to demonstrate the emergence of a dipole Luttinger liquid phase.
arXiv Detail & Related papers (2022-10-20T07:51:20Z) - Multi-band Bose-Einstein condensate at four-particle scattering
resonance [47.187609203210705]
We show that magnon quantization for thin samples results in a new multi-band magnon condensate.
The most stable multi-band condensate is found in a narrow regime favoured on account of a resonance in the scattering between two bands.
arXiv Detail & Related papers (2022-01-26T16:32:58Z) - Integrated quantum polariton interferometry [0.0]
We show that integrated circuits of single polaritons can be arranged to build deterministic quantum logic gates.
Our results introduce a novel paradigm for the development of practical quantum polaritonic devices.
arXiv Detail & Related papers (2021-07-28T14:09:23Z) - Quantum chaos driven by long-range waveguide-mediated interactions [125.99533416395765]
We study theoretically quantum states of a pair of photons interacting with a finite periodic array of two-level atoms in a waveguide.
Our calculation reveals two-polariton eigenstates that have a highly irregular wave-function in real space.
arXiv Detail & Related papers (2020-11-24T07:06:36Z) - Parallel dark soliton pair in a bistable 2D exciton-polariton superfluid [47.187609203210705]
2D dark solitons are unstable and collapse into vortices due to snake instabilities.
We demonstrate that a pair of dark solitons can be formed in the wake of an obstacle in a polariton flow resonantly supported by a homogeneous laser beam.
arXiv Detail & Related papers (2020-03-25T13:52:22Z) - Quantum Many-Body Physics with Ultracold Polar Molecules: Nanostructured
Potential Barriers and Interactions [2.409938612878261]
We design dipolar quantum many-body Hamiltonians that will facilitate the realization of exotic quantum phases.
The main idea is to modulate both single-body potential barriers and two-body dipolar interactions on a spatial scale of tens of nanometers.
arXiv Detail & Related papers (2020-01-31T12:30:12Z)
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.