Do Isoscattering Graphs Must Have the Same Eigenvalues?

Main Article Content

M. Ławniczak
O. Farooq
S. Bauch
P. Kurasov
L. Sirko

Abstract

Our study focuses on isoscattering quantum graphs and their eigenvalues. Contrary to the prevailing assumption that isoscattering graphs are isospectral, we present a new example of non-isospectral isoscattering graphs and study their properties. Additionally, we expanded our research to include dissipative graphs that can be realized and studied experimentally using microwave networks.

Article Details

How to Cite
[1]
M. Ławniczak, O. Farooq, S. Bauch, P. Kurasov, and L. Sirko, “Do Isoscattering Graphs Must Have the Same Eigenvalues?”, Acta Phys. Pol. A, vol. 148, no. 5, p. S9, Dec. 2025, doi: 10.12693/APhysPolA.148.S9.
Section
Special segment

References

G. Lambaré, J. Virieux, R. Madariaga, S. Jin, Geophysics 57, 1138 (1992), https://doi.org/10.1190/1.1443328

T. Marsh, Astrophys. Space Sci. 296, 403 (2005), https://doi.org/10.1007/s10509-005-4859-3

N.V. Shumakov, Sov. Phys. Tech. Phys. 2, 771 (1957), (translated by American Institute of Physics)

K. Chadan, P.C. Sabatier, R.G. Newton, Inverse Problems in Quantum Scattering Theory, 2nd ed., Springer Berlin, Heidelberg 2011, https://doi.org/10.1007/978-3-642-83317-5

G. Berkolaiko, P. Kuchment, Introduction to Quantum Graphs, American Mathematical Society, 2013

P. Kuchment, Proc. Symp. Pure Math. 77, 291 (2008)

P. Kurasov, Spectral Geometry of Graphs, Birkhäuser, 2024, https://doi.org/10.1007/978-3-662-67872-5

E.B. Davies, J. Operator Theory 69, 195 (2013)

V.A. Yurko, Izv. Sarat. Univ. (N.S.) Ser. Mat. Mekh. Inform. 21, 343 (2021)

O. Hul, S. Bauch, P. Pakoński, N. Savytskyy, K. Życzkowsk, L. Sirko, Phys. Rev. E 69, 056205 (2004), https://doi.org/10.1103/PhysRevE.69.056205

M. Ławniczak, J. Lipovský, L. Sirko, Phys. Rev. Lett. 122, 140503 (2019), https://doi.org/10.1103/PhysRevLett.122.140503

T. Ghutishvili, L. Chen, S.M. Anlage, T.M. Antonsen, Phys. Rev. Res. 5, 033195 (2023), https://doi.org/10.1103/PhysRevResearch.5.033195

T. Kottos, U. Smilansky, Phys. Rev. Lett. 79, 4794 (1997), https://doi.org/10.1103/PhysRevLett.79.4794

M. Ławniczak, S. Bauch, O. Hul, L. Sirko, Phys. Scr. 2009, 014050 (2009), https://doi.org/10.1088/0031-8949/2009/135/014050

M. Ławniczak, S. Bauch, O. Hul, L. Sirko, Phys. Scr. 2012, 014018 (2012), https://doi.org/10.1088/0031-8949/2012/T147/014018

O. Hul, P. Šeba, L. Sirko, Phys. Rev. E 79, 066204 (2009), https://doi.org/10.1103/PhysRevE.79.066204

M. Ławniczak, S. Bauch, O. Hul, L. Sirko, Phys. Scr. 2011, 014014 (2011), https://doi.org/10.1088/0031-8949/2011/T143/014014

M. Ławniczak, M. Białous, V. Yunko, S. Bauch, B. Dietz, L. Sirko, Acta Phys. Pol. A 132, 1672 (2017), https://doi.org/10.12693/APhysPolA.132.1672

O. Farooq, A. Akhshani, M. Ławniczak, M. Białous, L. Sirko, Phys. Rev. E 110, 014206 (2023), https://doi.org/10.1103/PhysRevE.110.014206

A. Rehemanjiang, M. Allgaier, C.H. Joyner, S. Müller, M. Sieber, U. Kuhl, H.-J. Stöckmann, Phys. Rev. Lett. 117, 064101 (2016), https://doi.org/10.1103/PhysRevLett.117.064101

J. Lu, J. Che, X. Zhang, B. Dietz, Phys. Rev. E 102, 022309 (2020), https://doi.org/10.1103/PhysRevE.102.022309

M. Ławniczak, A. Akhshani, O. Farooq, M. Białous, S. Bauch, B. Dietz, L. Sirko, Phys. Rev. E 107, 024203 (2023), https://doi.org/10.1103/PhysRevE.107.024203

M. Ławniczak, A. Akhshani, O. Farooq, S. Bauch, L. Sirko, Acta Phys. Pol. A 144, 469 (2023), https://doi.org/10.12693/APhysPolA.144.469

E. Gutkin, U. Smilansky, J. Phys. A 34, 6061 (2001), https://doi.org/10.1088/0305-4470/34/31/301

P.B. Kurasov, M. Nowaczyk, J. Phys. A 38, 4901 (2005), https://doi.org/10.1088/0305-4470/38/22/014

P.B. Kurasov, Math. Proc. Cambridge Philos. Soc. 148, 331 (2010), https://doi.org/10.1017/S030500410999034X

R. Band, A. Sawicki U. Smilansky, J. Phys. A 43, 415201 (2010), https://doi.org/10.1088/1751-8113/43/41/415201

O. Hul, M. Ławniczak, S. Bauch, A. Sawicki, M. Kuś, L. Sirko, Phys. Rev. Lett. 109, 040402 (2012), https://doi.org/10.1103/PhysRevLett.109.040402

M. Ławniczak, A. Sawicki, M. Białous, L. Sirko, Sci. Rep. 11, 1575 (2021), https://doi.org/10.1038/s41598-020-80950-6

M. Ławniczak, A. Sawicki, S. Bauch, M. Kuś, L. Sirko, Phys. Rev. E 89, 030901 (2014), https://doi.org/10.1103/PhysRevE.89.032911

R. Band, A. Sawicki, U. Smilansky, Acta Phys. Pol. A 120, A-149 (2011), https://doi.org/10.12693/APhysPolA.120.A-149

O. Farooq, M. Ławniczak, P. Kurasov, L. Sirko, Sci. Rep. 15, 39686 (2025), https://doi.org/10.1038/s41598-025-23400-5

M. Ławniczak, P. Kurasov, S. Bauch, M. Białous, V. Yunko, L. Sirko, Phys. Rev. E 101, 052320 (2020), https://doi.org/10.1103/PhysRevE.101.052320

P.B. Kurasov, Ark. Mat. 46, 95 (2008), https://doi.org/10.1007/s11512-007-0059-4

P.B. Kurasov, J. Funct. Anal. 254, 934 (2008), https://doi.org/10.1016/j.jfa.2007.11.007

M. Ławniczak, P. Kurasov, S. Bauch, M. Białous, L. Sirko, Acta Phys. Pol. A 139, 323 (2021), https://doi.org/10.12693/APhysPolA.139.323

M. Ławniczak, P. Kurasov, S. Bauch, M. Białous, A. Akhshani, L. Sirko, Sci. Rep. 11, 15342 (2021), https://doi.org/10.1038/s41598-021-94331-0

J. Lipovský, Acta Phys. Pol. A 128, 968 (2015), https://doi.org/10.12693/APhysPolA.128.968

P. Exner, J. Lipovský, J. Math. Phys. 58, 042101 (2017), https://doi.org/10.1063/1.4979048