Dergi makalesi Açık Erişim
Erman, Fatih; Gadella, Manuel; Uncu, Haydar
<?xml version='1.0' encoding='UTF-8'?> <record xmlns="http://www.loc.gov/MARC21/slim"> <leader>00000nam##2200000uu#4500</leader> <datafield tag="245" ind1=" " ind2=" "> <subfield code="a">On scattering from the one-dimensional multiple Dirac delta potentials</subfield> </datafield> <datafield tag="909" ind1="C" ind2="4"> <subfield code="p">EUROPEAN JOURNAL OF PHYSICS</subfield> <subfield code="v">39</subfield> <subfield code="n">3</subfield> </datafield> <controlfield tag="001">28907</controlfield> <datafield tag="980" ind1=" " ind2=" "> <subfield code="a">user-tubitak-destekli-proje-yayinlari</subfield> </datafield> <datafield tag="520" ind1=" " ind2=" "> <subfield code="a">In this paper, we propose a pedagogical presentation of the Lippmann-Schwinger equation as a powerful tool, so as to obtain important scattering information. In particular, we consider a one-dimensional system with a Schrodinger-type free Hamiltonian decorated with a sequence of N attractive Dirac delta interactions. We first write the Lippmann-Schwinger equation for the system and then solve it explicitly in terms of an N x N matrix. Then, we discuss the reflection and the transmission coefficients for an arbitrary number of centres and study the threshold anomaly for the N = 2 and N = 4 cases. We also study further features like the quantum metastable states and resonances, including their corresponding Gamow functions and virtual or antibound states. The use of the Lippmann-Schwinger equation simplifies our analysis enormously and gives exact results for an arbitrary number of Dirac delta potentials.</subfield> </datafield> <datafield tag="650" ind1="1" ind2="7"> <subfield code="2">opendefinition.org</subfield> <subfield code="a">cc-by</subfield> </datafield> <datafield tag="700" ind1=" " ind2=" "> <subfield code="a">Gadella, Manuel</subfield> </datafield> <datafield tag="700" ind1=" " ind2=" "> <subfield code="u">Adnan Menderes Univ, Dept Phys, TR-09100 Aydin, Turkey</subfield> <subfield code="a">Uncu, Haydar</subfield> </datafield> <datafield tag="980" ind1=" " ind2=" "> <subfield code="b">article</subfield> <subfield code="a">publication</subfield> </datafield> <datafield tag="542" ind1=" " ind2=" "> <subfield code="l">open</subfield> </datafield> <datafield tag="100" ind1=" " ind2=" "> <subfield code="u">Izmir Inst Technol, Dept Math, TR-35430 Izmir, Turkey</subfield> <subfield code="a">Erman, Fatih</subfield> </datafield> <datafield tag="260" ind1=" " ind2=" "> <subfield code="c">2018-01-01</subfield> </datafield> <controlfield tag="005">20210315124212.0</controlfield> <datafield tag="909" ind1="C" ind2="O"> <subfield code="o">oai:zenodo.org:28907</subfield> <subfield code="p">user-tubitak-destekli-proje-yayinlari</subfield> </datafield> <datafield tag="856" ind1="4" ind2=" "> <subfield code="z">md5:d5e35bdf4f4dbd09b3c4f73aa5f4ba95</subfield> <subfield code="s">149</subfield> <subfield code="u">https://aperta.ulakbim.gov.trrecord/28907/files/bib-b1559893-f74f-4a75-b33d-d3f65a3f8f73.txt</subfield> </datafield> <datafield tag="540" ind1=" " ind2=" "> <subfield code="u">http://www.opendefinition.org/licenses/cc-by</subfield> <subfield code="a">Creative Commons Attribution</subfield> </datafield> <datafield tag="024" ind1=" " ind2=" "> <subfield code="a">10.1088/1361-6404/aaa8a3</subfield> <subfield code="2">doi</subfield> </datafield> </record>
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