Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Engineered discreteness enables observation and control of chimera-like
  states in a system with local coupling   Chimera states -- named after the mythical beast with a lion's head, a goat's
body, and a dragon's tail -- correspond to spatiotemporal patterns
characterised by the coexistence of coherent and incoherent domains in coupled
systems. They were first identified in 2002 in theoretical studies of spatially
extended networks of Stuart-Landau oscillators, and have been subject to
extensive theoretical and experimental research ever since. While initially
considered peculiar to networks with weak nonlocal coupling, recent theoretical
studies have predicted that chimera-like states can emerge even in systems with
purely local coupling. Here we report on the first experimental observations of
chimera-like states in a system with local coupling -- a coherently-driven Kerr
nonlinear optical resonator. We show that artificially engineered discreteness
-- realised by suitably modulating the coherent driving field -- allows for the
nonlinear localisation of spatiotemporal complexity, and we demonstrate
unprecedented control over the existence, characteristics, and dynamics of the
resulting chimera-like states. Moreover, using ultrafast time lens imaging, we
resolve the chimeras' picosecond-scale internal structure in real time.

16
The categories of this paper are: stat
12
The categories of this paper are: nucl-th
31
The categories of this paper are: ao-sci
25
The categories of this paper are: patt-sol
29
The categories of this paper are: funct-an
35
The categories of this paper are: mtrl-th
0
The categories of this paper are: hep-ph
23
The categories of this paper are: solv-int
15
The categories of this paper are: nucl-ex
11
The categories of this paper are: hep-lat
8
The categories of this paper are: hep-ex
7
The categories of this paper are: hep-th
32
The categories of this paper are: atom-ph
20
The categories of this paper are: acc-phys
27
The categories of this paper are: comp-gas
4
The categories of this paper are: cond-mat