778 citations · 4.4k across the 68 of their papers we have counts for
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physics.optics2003★ 7 cited
Towards a classification of wave catastrophes
Tamas Kiss, Ulf Leonhardt
Wave catastrophes are characterized by logarithmic phase singularities. Examples are light at the horizon of a black hole, sound in transsonic fluids, waves in accelerated frames,…
quant-ph2003★ 30 cited
Explicit effective Hamiltonians for general linear quantum-optical networks
U. Leonhardt, A. Neumaier
Linear optical networks are devices that turn classical incident modes by a linear transformation into outgoing ones. In general, the quantum version of such transformations may mi…
quant-ph2003★ 140 cited
Quantum Physics of Simple Optical Instruments
Ulf Leonhardt
Simple optical instruments are linear optical networks where the incident light modes are turned into equal numbers of outgoing modes by linear transformations. For example, such i…