Experimental investigation of the enhancement factor for microwave irregular networks with preserved and broken time reversal symmetry in the presence of …

M Ławniczak, S Bauch, O Hul, L Sirko - Physical Review E—Statistical …, 2010 - APS
We present the results of the experimental study of the two-port scattering matrix S ̂ elastic
enhancement factor WS, β for microwave irregular networks simulating quantum graphs with …

Complexity of waves in nonlinear disordered media

C Conti, L Leuzzi - Physical Review B—Condensed Matter and Materials …, 2011 - APS
The statistical properties of the phases of several modes nonlinearly coupled in a random
system are investigated by means of a Hamiltonian model with disordered couplings. The …

Investigation of the diagonal elements of the Wigner's reaction matrix for networks with violated time reversal invariance

M Ławniczak, L Sirko - Scientific Reports, 2019 - nature.com
The distributions of the diagonal elements of the Wigner's reaction K ˆ matrix for open
systems with violated time reversal T invariance in the case of large absorption are for the …

Experimental and numerical investigation of the reflection coefficient and the distributions of Wigner's reaction matrix for irregular graphs with absorption

M Ławniczak, O Hul, S Bauch, P Seba, L Sirko - Physical Review E—Statistical …, 2008 - APS
We present the results of an experimental and numerical study of the distribution of the
reflection coefficient P (R) and the distributions of the imaginary P (v) and the real P (u) parts …

Experimental investigation of Wigner's reaction matrix for irregular graphs with absorption

O Hul, O Tymoshchuk, S Bauch… - Journal of Physics A …, 2005 - iopscience.iop.org
We use tetrahedral microwave networks consisting of coaxial cables and attenuators
connected by T-joints to make an experimental study of Wigner's reaction K matrix for …

Asymmetric transmission through a classical analogue of the Aharonov-Bohm ring

L Chen, IL Giovannelli, N Shaibe, SM Anlage - Physical Review B, 2024 - APS
It has been predicted that new physics and technology are enabled for quantum systems
that suffer from partial decoherence, in the intermediate range between coherent quantum …

Effective Hamiltonian for a microwave billiard with attached waveguide

HJ Stöckmann, E Persson, YH Kim, M Barth, U Kuhl… - Physical Review E, 2002 - APS
In a recent work the resonance widths in a microwave billiard with attached waveguide were
studied in dependence on the coupling strength [E. Persson et al., Phys. Rev. Lett. 85, 2478 …

Formation of bound states in the continuum for a quantum dot with variable width

E Bulgakov, A Sadreev - Physical Review B—Condensed Matter and Materials …, 2011 - APS
We consider mechanisms of formation of the bound states in the continuum in open
rectangular quantum dots with variable width. Because of symmetry there might be bound …

Is the concept of the non-Hermitian effective Hamiltonian relevant in the case of potential scattering?

DV Savin, VV Sokolov, HJ Sommers - Physical Review E, 2003 - APS
We examine the notion and properties of the non-Hermitian effective Hamiltonian of an
unstable system using as an example potential resonance scattering with a fixed angular …

Statistics of delay times in mesoscopic systems as a manifestation of eigenfunction fluctuations

A Ossipov, YV Fyodorov - Physical Review B—Condensed Matter and …, 2005 - APS
We reveal a general explicit relation between the statistics of delay times in one-channel
reflection from a mesoscopic sample of any spatial dimension and the statistics of the …