Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Testing a Quantum Inequality with a Meta-analysis of Data from Squeezed
  Light   In quantum field theory, coherent states can be created that have negative
energy density, meaning it is below that of empty space, the free quantum
vacuum. If no restrictions existed regarding the concentration and permanence
of negative energy regions, it might, for example, be possible to produce
exotic phenomena such as Lorentzian transversable wormholes, warp drives, time
machines, violations of the second law of thermodynamics, and naked
singularities. Quantum Inequalities (QIs) have been proposed that restrict the
size and duration of the regions of negative quantum vacuum energy that can be
accessed by observers. However, QIs generally are derived for situations in
cosmology and are very difficult to test. Direct measurement of vacuum energy
is difficult and to date no QI has been tested experimentally. We test a
proposed QI for squeezed light by a meta-analysis of published data obtained
from experiments with optical parametric amplifiers (OPA) and balanced homodyne
detection. Over that last three decades, researchers in quantum optics have
been trying to maximize the squeezing of light and the quantum vacuum and have
succeeded in reducing the variance in the quantum vacuum fluctuations to -15
dB. To apply the QI, a time sampling function is required. In our meta-analysis
different time sampling functions for the QI were examined, but in all
physically reasonable cases the QI is violated by much or all of the measured
data. This brings into question the basis for QI. Possible explanations are
given for this surprising result.

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The categories of this paper are: nlin
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The categories of this paper are: chao-dyn
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The categories of this paper are: math-ph
19
The categories of this paper are: eess
10
The categories of this paper are: q-bio
36
The categories of this paper are: cmp-lg
1
The categories of this paper are: cs
20
The categories of this paper are: acc-phys
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The categories of this paper are: solv-int
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The categories of this paper are: bayes-an
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The categories of this paper are: hep-ex
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The categories of this paper are: hep-lat
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The categories of this paper are: dg-ga
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The categories of this paper are: adap-org
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The categories of this paper are: patt-sol
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The categories of this paper are: q-fin