Quantum Ghost Imaging by Sparse Spatial Mode Reconstruction
Advanced Quantum Technologies,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 6, 2025
Abstract
In
a
conventional
quantum
imaging
experiment,
the
image
of
object
is
retrieved
directly
with
single
photon
camera
technology,
or
computationally
single‐pixel
detector
and
pixelated
projective
masks.
all
these
approaches,
resolution
dictated
by
pixel
detection
devices.
this
paper,
traditional
spatial
basis
pixels
replaced
modes,
exploiting
their
unique
features
to
enhance
fidelity
improve
reconstruction
accuracy
through
modal
sparsity.
This
approach
can
be
used
even
when
modes
are
not
orthogonal,
demonstrating
principle
highly
efficient
phase‐only
approximations
basis.
By
numerical
simulation
experimental
analysis,
advantages
illustrated,
which
include
faster
convergence
object,
higher
signals
fidelity,
demonstrated
an
order
magnitude
less
masks
than
approaches
for
same
in
outcome.
Unlike
pixels,
detectors,
opening
path
high‐resolution
complex
objects.
Language: Английский
Quantum remote sensing
Published: Nov. 15, 2024
We
present
an
advanced
quantum
ghost
imaging
(QGI)
setup
that
enables
low-noise,
three-dimensional
and
ranging
of
distant
objects.
A
key
technical
innovation
is
asynchronous
detection
by
independent
single
photon
detectors,
which
significantly
simplifies
existing
setups
allows
at
arbitrary
distances.
Recent
experimental
results
demonstrate
low-noise
efficient
object
ranging.
An
important
advantage
with
regard
to
secure
active
sensing
indistinguishability
from
background
noise
for
external
parties.
Language: Английский
Recent Advances in Quantum Biosensing Technologies
IntechOpen eBooks,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 3, 2024
Recent
advances
in
biosensing
technologies
have
revolutionized
the
field
of
biomedical
diagnostics
and
environmental
monitoring.
This
chapter
reviews
cutting-edge
developments
quantum
sensing
biosensing,
with
examples
including
diamond
defect
plasmonic
among
other
novel
methodologies.
Diamond
sensing,
leveraging
nitrogen-vacancy
centers
diamond,
offers
unparalleled
sensitivity
precision
detecting
magnetic
electric
fields
at
nanoscale.
Quantum
combining
unique
properties
plasmons
mechanics,
enhances
specificity,
enabling
detection
biomolecules
ultra-low
concentrations.
Additionally,
advancements
technologies,
such
as
dot-based
sensors
single-photon
detection,
will
be
discussed,
highlighting
their
potential
applications
real-time,
high-resolution
biosensing.
These
innovative
approaches
promise
to
significantly
improve
accuracy,
speed,
versatility
paving
way
for
new
diagnostic
tools
monitoring
solutions.
The
delve
into
principles
behind
these
current
applications,
future
directions
they
may
take,
providing
a
comprehensive
overview
transformative
impact
on
medical
beyond.
Language: Английский