Collectively pair-driven-dissipative bosonic arrays: exotic and
self-oscillatory condensates
- URL: http://arxiv.org/abs/2111.07326v1
- Date: Sun, 14 Nov 2021 12:15:59 GMT
- Title: Collectively pair-driven-dissipative bosonic arrays: exotic and
self-oscillatory condensates
- Authors: Yinan Chen and Carlos Navarrete-Benlloch
- Abstract summary: We analyze the superfluid phases accessible to bosonic arrays subject to novel mechanisms.
We show that, even in the presence of residual local loss, the system is stabilized into an exotic state with bosons condensed along the modes of a closed manifold.
This gives access to a plethora of different patterns, ranging from periodic and quasi-periodic ones with spatial wavelength, to homogeneously-populated closed-Fourier-manifolds.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Modern quantum platforms such as superconducting circuits provide exciting
opportunities for the experimental exploration of driven-dissipative many-body
systems in unconventional regimes. One of such regimes occurs in bosonic
systems, where nowadays one can induce driving and dissipation through pairs of
excitations, rather than the conventional single-excitation processes.
Moreover, modern platforms can be driven in a way in which the modes of the
bosonic array decay collectively rather than locally, such that the pairs of
excitations recorded by the environment come from a coherent superposition of
all sites. In this work we analyze the superfluid phases accessible to bosonic
arrays subject to these novel mechanisms more characteristic of quantum optics,
which we prove to lead to remarkable spatiotemporal properties beyond the
traditional scope of pattern formation in condensed-matter systems or nonlinear
optics alone. We show that, even in the presence of residual local loss, the
system is stabilized into an exotic state with bosons condensed along the modes
of a closed manifold in Fourier space, with a distribution of the population
among these Fourier modes that can be controlled via a weak bias (linear)
drive. This gives access to a plethora of different patterns, ranging from
periodic and quasi-periodic ones with tunable spatial wavelength, to
homogeneously-populated closed-Fourier-manifold condensates that are thought to
play an important role in some open problems of condensed-matter physics.
Moreover, we show that when any residual local linear dissipation is balanced
with pumping, new constants of motion emerge that can force the superfluid to
oscillate in time, similarly to the mechanism behind the recently discovered
superfluid time crystals. We propose specific experimental implementations with
which this rich and unusual spatiotemporal superfluid behavior can be explored.
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