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Collections
of atoms and
solid-state
quantum
emitters
coupled to
waveguides and
nanophotonic
structures
offer a
promising
platform for
several
quantum
information
applications.
When
interfacing
small quantum
systems and
surfaces at
nanoscales,
fluctuation-induced
phenomena such
as vacuum
forces,
surface-modified
dissipation
and
decoherence
become an
inevitable
element of
consideration.
The need to
achieve better
control and
coherence of
photonic
systems at
that scale
therefore
requires a
detailed
understanding
of these
phenomena. In
this talk, I
will present
an overview of
various ways
to engineer
fluctuation-induced
phenomena in
nanoscale
quantum
optical
systems, and
discuss the
possibility of
using
cooperative
effects to
modify
fluctuation-induced
forces.
Furthermore,
when
connecting
multiple
emitters
prepared in
correlated
collective
states at long
distances,
memory effects
of the
electromagnetic
environments
often become
pronounced,
necessitating
a
non-Markovian
treatment of
the system. I
will discuss
the collective
atom-field
interactions
in a model
system of two
distant
correlated
emitters
coupled to a
waveguide. We
demonstrate
that such a
system can
exhibit
surprisingly
rich
non-Markovian
dynamics, with
collective
spontaneous
emission rates
exceeding
those of Dicke
superradiance
(`superduperradiance'),
formation of
delocalized
atom-photon
bound states
and
frequency-comb-like
features in
the output
spectrum.
[1] K. Sinha,
B. P.
Venkatesh, and
P. Meystre,
Collective
effects in
Casimir-Polder
Forces, Phys.
Rev. Lett. 121,
183605 (2018).
[2] K. Sinha,
P. Meystre, E.
Goldschmidt,
F. K. Fatemi,
S. L. Rolson,
and P. Solano,
Non-Markovian
Collective
Emission from
Macroscopically
Separated
Emitters, Phys.
Rev. Lett.
124,
043603 (2020).
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