Physical review. A/Physical review, A,
Journal Year:
2024,
Volume and Issue:
110(1)
Published: July 3, 2024
Recently,
handling
of
contextual
sets,
in
particular
Kochen-Specker
(KS)
higher
dimensions
has
been
given
an
increasing
attention,
both
theoretically
and
experimentally.However,
methods
their
generation
are
diverse,
not
generally
applicable
every
dimension,
exponential
complexity.Therefore,
we
design
a
dimensional
upscaling
method,
whose
complexity
does
scale
with
dimension.As
proof
principle
generate
manageable-sized
KS
master
sets
up
to
27
spaces
show
that
well
over
32
can
be
reached.From
these
obtain
ample
number
smaller
sets.We
discuss
three
kinds
applications
work
dimensions.We
anticipate
other
for
quantum
information
processing
make
use
large
families
nonisomorphic
sets.8.
New Journal of Physics,
Journal Year:
2021,
Volume and Issue:
24(1), P. 013032 - 013032
Published: Dec. 31, 2021
Encoding
high-dimensional
quantum
information
into
single
photons
can
provide
a
variety
of
benefits
for
technologies,
such
as
improved
noise
resilience.
However,
the
efficient
generation
on-demand,
entanglement
was
thought
to
be
out
reach
current
and
near-future
photonic
technologies.
We
present
protocol
near-deterministic
$N$-photon,
$d$-dimensional
Greenberger-Horne-Zeilinger
(GHZ)
states
using
an
array
$d$
non-interacting
single-photon
emitters.
analyse
impact
on
performance
common
sources
error
emitters,
photon
spectral
distinguishability
temporal
mismatch,
find
they
are
readily
correctable
with
time-resolved
detection
yield
high
fidelity
GHZ
multiple
qudits.
When
applied
key
distribution
scenario,
our
exhibits
loss
tolerance
rates
when
increasing
dimensionality
beyond
binary
encodings.
Journal of Lightwave Technology,
Journal Year:
2022,
Volume and Issue:
40(23), P. 7598 - 7609
Published: Oct. 10, 2022
Fast
and
ultra-low
loss
single-photon
switching
routing
are
essential
for
photonic
quantum
computation
communication.
To
address
this
need
in
a
scalable
fashion,
all-optical
switches
that
can
be
fabricated
an
mature
Si
$_{3}$
N
notation="LaTeX">$_{4}$
integrated
circuit
(PIC)
foundry
platform
designed
optimized
sub-ns
times
suitable
deterministic
quantum-dot
sources.
The
working
principle
relies
on
cross-phase
modulation
(XPM)
of
the
single
photons
with
1550-nm
pump
pulse
is
enhanced
by
ring
resonator.
Two
different
designs
primary
switch
element
theoretically
studied,
namely
resonator
intensity
(RRIS)
based
resonance
shifting
due
to
XPM
phase
(RRPS)
acting
as
shifter
Mach–Zehnder
interferometer.
As
novel
approach
speed
up
switching,
chirped
pre-emphasis
wipe
sections
pulses
utilized.
A
design
tool
established
from
analytical
expressions
serves
starting
point
further
optimization
using
dedicated
travelling-wave
model
(TWM).
TWM
demonstrates
feasibility
both
driven
either
proposed
shape
or
train
Gaussian
pulses.
While
RRPS
turns
out
require
less
energy,
its
operation
more
sensitive
pump-power
fluctuations.
Insertion
losses
below
0.1
dB
power
consumption
5
nJ
at
1
GHz
rates
configurations
prove
potential
concept
applications.
Physical review. A/Physical review, A,
Journal Year:
2023,
Volume and Issue:
107(3)
Published: March 30, 2023
Symmetric
multiport
splitters
are
versatile
tools
in
optical
quantum
information
processing.
They
can
be
used
for
studying
multiparticle
scattering,
distinguishability
and
mixedness,
also
the
generation
of
multipartite
entangled
states.
Here,
we
show
that
N-photon
N-mode
Greenberger-Horne-Zeilinger
(GHZ)
states
generated
using
symmetric
beam
splitters.
Varying
input
states'
internal
degrees
freedom
post-selecting
onto
certain
photon-number
distributions
allows
probabilistic
GHZ
with
arbitrary
photon
numbers.
We
present
two
novel
schemes,
one
odd
even
numbers
photons,
to
generate
compare
them
a
strategy
utilizing
2N-port
network
as
well
standard
post-selection
method.
arXiv (Cornell University),
Journal Year:
2023,
Volume and Issue:
unknown
Published: Jan. 1, 2023
Recently,
handling
of
contextual
sets,
in
particular
Kochen-Specker
(KS)
higher
dimensions
has
been
given
an
increasing
attention,
both
theoretically
and
experimentally.
However,
methods
their
generation
are
diverse,
not
generally
applicable
every
dimension,
exponential
complexity.
Therefore,
we
design
a
dimensional
upscaling
method,
whose
complexity
does
scale
with
dimension.
As
proof
principle
generate
manageable-sized
KS
master
sets
up
to
27
spaces
show
that
well
over
32
can
be
reached.
From
these
obtain
ample
number
smaller
sets.
We
discuss
three
kinds
applications
work
dimensions.
anticipate
other
for
quantum
information
processing
make
use
large
families
nonisomorphic
Physical review. A/Physical review, A,
Journal Year:
2024,
Volume and Issue:
110(1)
Published: July 3, 2024
Recently,
handling
of
contextual
sets,
in
particular
Kochen-Specker
(KS)
higher
dimensions
has
been
given
an
increasing
attention,
both
theoretically
and
experimentally.However,
methods
their
generation
are
diverse,
not
generally
applicable
every
dimension,
exponential
complexity.Therefore,
we
design
a
dimensional
upscaling
method,
whose
complexity
does
scale
with
dimension.As
proof
principle
generate
manageable-sized
KS
master
sets
up
to
27
spaces
show
that
well
over
32
can
be
reached.From
these
obtain
ample
number
smaller
sets.We
discuss
three
kinds
applications
work
dimensions.We
anticipate
other
for
quantum
information
processing
make
use
large
families
nonisomorphic
sets.8.
