Higher-dimensional Hong-Ou-Mandel effect and state redistribution with
linear-optical multiports
- URL: http://arxiv.org/abs/2012.08745v1
- Date: Wed, 16 Dec 2020 04:50:39 GMT
- Title: Higher-dimensional Hong-Ou-Mandel effect and state redistribution with
linear-optical multiports
- Authors: Shuto Osawa, David S. Simon, Alexander V. Sergienko
- Abstract summary: We expand the two-photon Hong-Ou-Mandel (HOM) effect onto a higher-dimensional set of spatial modes.
We introduce an effect that allows controllable redistribution of quantum states over these modes using directionally unbiased linear-optical four-ports.
- Score: 68.8204255655161
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: We expand the two-photon Hong-Ou-Mandel (HOM) effect onto a
higher-dimensional set of spatial modes and introduce an effect that allows
controllable redistribution of quantum states over these modes using
directionally unbiased linear-optical four-ports without post-selection. The
original HOM effect only allows photon pairs to exit in two directions in
space. But when accompanied by beam splitters and phase shifters, the result is
a directionally controllable two-photon HOM effect in four spatial modes, with
direction controlled by changing the phases in the system. This controllable
quantum amplitude manipulation also allows demonstration of a "delayed" HOM
effect by exploiting phase shifters in a system of two connected multiport
devices. By this means, both spatial and temporal control of the propagation of
the two-photon superposition state through a network can be achieved.
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