Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Improving the phase super-sensitivity of squeezing-assisted
  interferometers by squeeze factor unbalancing   The sensitivity properties of an SU(1,1) interferometer made of two cascaded
parametric amplifiers, as well as of an ordinary SU(2) interferometer preceded
by a squeezer and followed by an anti-squeezer, are theoretically investigated.
Several possible experimental configurations are considered, such as the
absence or presence of a seed beam, direct or homodyne detection scheme. In all
cases we formulate the optimal conditions to achieve phase super-sensitivity,
meaning a sensitivity overcoming the shot-noise limit. We show that for a given
gain of the first parametric amplifier, unbalancing the interferometer by
increasing the gain of the second amplifier improves the interferometer
properties. In particular, a broader super-sensitivity phase range and a better
overall sensitivity can be achieved by gain unbalancing.

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The categories of this paper are: eess
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The categories of this paper are: adap-org
11
The categories of this paper are: hep-lat
28
The categories of this paper are: alg-geom
3
The categories of this paper are: physics
36
The categories of this paper are: cmp-lg
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The categories of this paper are: econ
0
The categories of this paper are: hep-ph
6
The categories of this paper are: astro-ph
2
The categories of this paper are: math
32
The categories of this paper are: atom-ph
9
The categories of this paper are: nlin
22
The categories of this paper are: chao-dyn
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The categories of this paper are: q-fin
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The categories of this paper are: dg-ga
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The categories of this paper are: nucl-ex