Gaziantep University

GAZİANTEP UNIVERSITY

Türkçe
Prof.Dr. RAMAZAN KOÇ
HOMEPAGEDEPARTMENT OF ENGINEERING PHYSICS
Publications
International Journals
Year
Content
2015

Koc, Ramazan; Olgar, Eser; Mutaf, Haydar

A Novel Approach to Solve Quasiexactly Solvable Pauli Equation

ADVANCES IN MATHEMATICAL PHYSICS    Article Number: 304093   Published: 2015

2015

Koca, Mehmet; Koca, Nazife Ozdes; Koc, Ramazan

Group-theoretical analysis of aperiodic tilings from projections of higher-dimensional lattices B-n

ACTA CRYSTALLOGRAPHICA A-FOUNDATION AND ADVANCES  Volume: 71 Pages: 175-185   Part: 2   Published: MAR 2015

2014

Mehmet Koca, Nazife Ö. Koca  and Ramazan Koç, “Affine coxeter group Wa(A4), quaternions, and decagonal quasicrystals”, International Journal of Geometric Methods in Modern Physics, Vol. 11, No. 4 (2014) 1450031 (23 pages).

2014

Koca, Nazife O.; Koca, Mehmet; Koc, Ramazan

Twelvefold symmetric quasicrystallography from the lattices F-4, B-6 and E-6

ACTA CRYSTALLOGRAPHICA A-FOUNDATION AND ADVANCES  Volume: 70   Pages: 605-615   Part: 6   Published: NOV 2014

2013

Koc Ramazan,  Haciibrahimoglu M. Yakup, Koca Mehmet , "Coxeter groups A(4), B-4 and D-4 for two-qubit systems ", PRAMANA-JOURNAL OF PHYSICS ,Volume: 81   Issue: 2   Pages: 247-260   AUG 2013

2011

Koc Ramazan; Tutunculer Hayriye; Olgar Eser, Reply to the Comment on 'A solution of the bosonic and algebraic Hamiltonians by using an AIM'
Source: JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL  Volume: 44   Issue: 22     Article Number: 228002   DOI: 10.1088/1751-8113/44/22/228002   Published: JUN 3 2011

2010

Koca Mehmet; Koca Nazife Ozdes; Koc Ramazan, Catalan solids derived from three-dimensional-root systems and quaternions
Source: JOURNAL OF MATHEMATICAL PHYSICS  Volume: 51   Issue: 4     Article Number: 043501   DOI: 10.1063/1.3356985   Published: APR 2010

2010

Koc Ramazan; Tutunculer Hayriye; Olgar Eser, A solution of the bosonic and algebraic Hamiltonians by using an AIM
Source: JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL  Volume: 43   Issue: 39     Article Number: 395208   DOI: 10.1088/1751-8113/43/39/395208   Published: OCT 1 2010

2010

Koc Ramazan; Sayin Seda, Remarks on the solution of the position-dependent mass Schrodinger equation
Source: JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL  Volume: 43   Issue: 45     Article Number: 455203   DOI: 10.1088/1751-8113/43/45/455203   Published: NOV 12 2010

2008

Koc Ramazan; Ozer Okan; Tutunculer Hayriye, Solution of the matrix Hamiltonians via the asymptotic iteration method
Source: CHINESE JOURNAL OF PHYSICS  Volume: 46   Issue: 1   Pages: 1-13   Published: FEB 2008

2008

Olgar Eser; Koc Ramazan; Tuetuencueler Hayriye, The exact solution of the s-wave Klein-Gordon equation for the generalized Hulthen potential by the asymptotic iteration method
Source: PHYSICA SCRIPTA  Volume: 78   Issue: 1     Article Number: 015011   DOI: 10.1088/0031-8949/78/01/015011   Published: JUL 2008

2007

Koca Mehmet; Al-Ajmi Mudhahir; Koc Ramazan, Group theoretical analysis of 600-cell and 120-cell 4D polytopes with quaternions
Source: JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL  Volume: 40   Issue: 27   Pages: 7633-7642   DOI: 10.1088/1751-8113/40/27/013   Published: JUL 6 2007

2007

Koca Mehmet; Koc Ramazan; Koca Nazife O., The Chevalley group G(2)(2) of order 12096 and the octonionic root system of E-7
Source: LINEAR ALGEBRA AND ITS APPLICATIONS  Volume: 422   Issue: 2-3   Pages: 808-823   DOI: 10.1016/j.laa.2006.12.011   Published: APR 15 2007

2007

Koc R.; Oezer O.; Tuetuencueler H.; et al., Solution of spin-boson systems in one and two-dimensional geometry via the asymptotic iteration method
Source: EUROPEAN PHYSICAL JOURNAL B  Volume: 59   Issue: 3   Pages: 375-383   DOI: 10.1140/epjb/e2007-00294-0   Published: OCT 2007

2007

Koca Mehmet; Al-Ajmi Mudhahir; Koc Ramazan, Polyhedra obtained from Coxeter groups and quaternions
Source: JOURNAL OF MATHEMATICAL PHYSICS  Volume: 48   Issue: 11     Article Number: 113514   DOI: 10.1063/1.2809467   Published: NOV 2007

2006

Koca M; Koc R; Al-Barwani M; et al., Maximal subgroups of the Coxeter group W(H-4) and quaternions
Source: LINEAR ALGEBRA AND ITS APPLICATIONS  Volume: 412   Issue: 2-3   Pages: 441-452   DOI: 10.1016/j.laa.2005.07.018   Published: JAN 15 2006

2006

Olgar E; Koc R; Tutunculer H, Bound states of the S-wave equation with equal scalar and vector standard Eckart potential
Source: CHINESE PHYSICS LETTERS  Volume: 23   Issue: 3   Pages: 539-541   DOI: 10.1088/0256-307X/23/3/004   Published: MAR 2006

2006

Koca M; Al-Barwani M; Koc R, Quaternionic root systems and subgroups of the Aut(F-4)
Source: JOURNAL OF MATHEMATICAL PHYSICS  Volume: 47   Issue: 4     Article Number: 043507   DOI: 10.1063/1.2190334   Published: APR 2006

2006

Koca Mehmet; Al-Ajmi Mudhahir; Koc Ramazan, Quaternionic representation of the Coxeter group W(H(4)) and the polyhedra
Source: JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL  Volume: 39   Issue: 45   Pages: 14047-14054   DOI: 10.1088/0305-4470/39/45/013   Published: NOV 10 2006

2006

Koc R; Korcuk E; Tutunculer H, A solution of the Txt Jahn-Teller Hamiltonian with the rotating wave approximation
Source: CHINESE JOURNAL OF PHYSICS  Volume: 44   Issue: 3   Pages: 224-232   Published: JUN 2006

2005

Spectrum of the relativistic particles in various potentials

2005

Koc R; Tutunculer H; Koca M; et al., Algebraic treatments of the problems of the spin-1/2 particles in the one- and two-dimensional geometry: A systematic study
Source: ANNALS OF PHYSICS  Volume: 319   Issue: 2   Pages: 333-347   DOI: 10.1016/j.aop.2005.04.007   Published: OCT 2005

2005

Koc R; Koca M; Sahinoglu G, Scattering in abrupt heterostructures using a position dependent mass Hamiltonian
Source: EUROPEAN PHYSICAL JOURNAL B Volume: 48 Issue: 4 Pages: 583-586 DOI: 10.1140/epjb/e2005-00422-x Published: DEC 2005

2004

Hayriye Tütüncüler and Ramazan Koç, “Differential realizations of the two-mode bosonic and fermionic Hamiltonians: A unified Approach”, PRAMANA J. Phys. 62, (2004) 993-1005.

2004

Ramazan Koç, Hayriye Tütüncüler and Eser Olğar, “Exactly and Quasi-Exactly Solvable two-mode Bosonic Hamiltonians” Chinese J. Physics, 42, (2004), 575-584.

2004

Ramazan Koç, Hayriye Tütüncüler and Eser Olgar, “Spectra of Interacting Electrons in a Quantum Dot: Quasi-Exact Solution, J. Korean Phys. Soc., Vol. 45, No. 4, October 2004, pp. 837-840.

2004

Hayriye Tütüncüler, Ramazan Koç, Eser Olğar, “Solution of a Hamiltonian of quantum dots with Rashba Coupling: quasi-exact solution” J. Phys. A: Math. Gen. 37 (2004) 11431–11438.

2004

Koc R; Tutunculer H; Koca M, Solution of two-mode bosonic Hamiltonians and related physical systems
Source: NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA B-GENERAL PHYSICS RELATIVITY ASTRONOMY AND MATHEMATICAL PHYSICS AND METHODS Volume: 119 Issue: 10 Pages: 909-920 DOI: 10.1393/ncb/i2003-10097-0 Published: OCT 2004

2003

Koca M, Koç R, and Tütüncüler H, “Explicit Breaking SO(3) with Higgs field in the representations L=2 and L=3”, Int. Mod. Phys. A, 18, (2003) 4817-4827.

2003

Koç R. and Koca M. “A systematic study on the exact solution of the position dependent mass Schrödinger equation” J. Phys. A: Math. Gen. 36, (2003) 8105-8112.

2003

Mehmet Koca, Ramazan Koç and Muataz Al-Barwani, “Quaternionic roots of SO(8), SO(9), F4 and the related Weyl groups” J. Math. Phys. 44, 7, (2003) 3123-3140.

2003

Ramazan Koç, Hayriye Tütüncüler, Mehmet Koca and Eser Körcük, “Quasi-Exact solution of the Generalized EÄe Jahn-Teller Hamiltonian”, Prog. Theor. Phys. 110, 3, (2003) 399-405.

2003

Ramazan Koç and Hayriye Tütüncüler, “Exact solution of position dependent mass Schrödinger equation by SUSYQM”, Ann. Phys. (Leipzig) 12, (2003) 684-691.

2002

Koç R, Koca M , Körcük E., “A new class of quasi-exactly solvable potentials with a position dependent mass” J. Phys. A: Math. Gen. 35, (2002) L1-L4.

2002

Koç R. Koca M. Tütüncüler H., “Quasi-Exact Solution of the Rabi Hamiltonian” J. Phys. A: Math. Gen. 35 (2002) 9425-9430.

2001

Koca M, Koç R, Al-Barwani M., “Non-Crystallographic Coxeter Group H4 in E8” J. Phys. A: Math. Gen. 34, (2001) 11201–11213.

2000

Koç R, Tütüncüler H, Koca M “A new Approach to analyse Hx(2h+g) Jahn-Teller System for C60” Eur. Phys. J. D 12, (2000), 467-472.

1997

Koca M, Koç R, Al-Barwani M., “Breaking SO(3) into its subgroups by Higgs mechanism” J. Phys. A: Math. Gen. 30, (1997) 2109-2125.

1994

Koca M, Koç R., “Automorphism groups of pure integral octonions” J. Phys. A: Math. Gen. 27, (1994) 2429-2442.

Communications Presented and Published In a Book In The International Scientific Meetings
Year
Content
2012

Ramazan Koç, Mehmet Koca and Nazife O. Koca, “A mathematica Program for projecting Lattice vectors on the Coxeter Plane”, A workshop on Groups and Geometries, December 17-21, 2012, Indian Statistical Institute, Bangalore, India.

2005

Koc R,  Development of an approximate method for quantum optical models and their pseudo-Hermicity
Conference: 3rd International Workshop on Pseudo-Hermitian Hamiltonians in Quantum Physics Location: Koc Univ, Istanbul, TURKEY Date: JUN 20-22, 2005
Source: CZECHOSLOVAK JOURNAL OF PHYSICS  Volume: 55   Issue: 9   Pages: 1135-1140   DOI: 10.1007/s10582-005-0118-7   Published: SEP 2005

2004

Eser Körcük and Ramazan Koç, “Symmetries of the Jahn–Teller Systems and Their Solvability”, Proc. of Institute of Math. of NAS of Ukraine, 50, 2 , (2004), 829–834.

2004

Hayriye Tütüncüler, Ramazan Koç and Bora U. Türkdönmez, “Group Theoretical Treatment of the Jahn-Teller Systems:Tx(e+t) Coupling”, AIP Conference Proceeding 729, GLOBAL ANALYSIS AND APPLIED MATHEMATICS: International Workshop on Global Analysis, Ed. By Taş K, Krupka D, Krupkova O and Baleanu D, 2004, 381-388.

2004

Derya Haydargil and Ramazan Koç, “Finite Group Invariance and Solution of Jaynes-Cummings Hamiltonian” AIP Conference Proceeding 729, GLOBAL ANALYSIS AND APPLIED MATHEMATICS: International Workshop on Global Analysis, Ed. By Taş K, Krupka D, Krupkova O and Baleanu D, 2004, 185-192.

2001

Koca M., Koç R., Tütüncüler H., “Breaking a Gauged SO(3) Symmetry by Higgs Fields in j = 3 Representation” International Europhysics Conference on High Energy Physics 12-18 July(2001), Budapest, Hungary

1994

Koca M. Koç R, “Automorphism Groups of Discrete Octonions” VI. Regional Conference in Mathematical Physics, 5-11 Feb. 1994, İslamabad Pakistan

National Journals
Year
Content
2014

Ibrahim N. Qader and Ramazan Koç, “Simulation of Controlled Physical Quantum Gates by using Mathematica”, IJCSNS International Journal of Computer Science and Network Security, VOL.14 No.1, January 2014

2014

M. Kourmo, H.M. Ahmadov, Ramazan Koç,”On partition of the excitation energy between the fission fragments in spontaneous fission of 252Cf”, Journal of Nuclear Sciences (JNS), (2014), 1,1 6-12.

2011

Mehmet Koca, Nazife Ö. Koca  and Ramazan Koç, “Quasi Regular Polyhedra and Their Duals with Coxeter Symmetries Represented by Quaternions - I”, African Physical Review (2011) 6:0006, 41-52

2008

Mehmet Koca, Mudhahir Al-Ajmi  and Ramazan Koç, “Regular and Semi-Regular 4D-Polytopes of the Coxeter-Weyl Group W(F4) and Quaternions”, African Physical Review (2008) 2:0009, 78-90

2008

Mehmet Koca, Mudhahir Al-Ajmi  and Ramazan Koç, “Regular and Semi-Regular 4D-Polytopes of the Coxeter-Weyl Group W(SO(9)) and Quaternions”, African Physical Review (2008) 2:0009, 91-105

2005

Ramazan Koç and Mehmet Koca, “Dirac Sextic Oscillator in the Constant Magnetic Field” Tr. J. Phys. 29 (2005) 201-205.

2004

Ramazan Koç and Derya Haydargil, “Solution of the Schrödinger equation with one and two dimensional double-well potentials”, Tr. J. Phys. 28, (2004) 161-167

2004

Hayriye Tütüncüler and Ramazan Koç, “Realizations of the osp(2,1) superalgebra and related physical systems”, Tr. J. Phys. 28, (2004) 145-153.

1998

Koç R, Tütüncüler H., “Symmetry of C60 and a force constant model for vibrational modes” Tr. J. Phys. 22, (1998) 123-129.

1998

Koca M., Koca Ö N., Koç R., “ Quaternionic Roots of E8 related Coxeter Graphs and Quasi Crystals” Tr. J. Phys. 22, (1998) 421-435.

1995

Koca M and Koç R., “Octonions and the Group of Order 1344” Tr. J. Phys. 19, (1995) 304-319.

Other Publications
Year
Content
2002

Ramazan Koç and Hayriye Tütüncüler, “A systematic study on the QES potentials”, Tr. Physical Society, 21th Physics Conference, 11-14 Sept. (2002), Isparta, Turkey (Abstract, p15).

2002

Hayriye Tütüncüler and Ramazan Koç, “Group invariance of the Jahn-Teller systems”, Tr. Physical Society, 21th Physics Conference, 11-14 Sept. (2002), Isparta, Turkey (Abstract, p34).

2002

Eser Körcük and Ramazan Koç, “QES of the Exb Jahn-Teller systems”, Tr. Physical Society, 21th Physics Conference, 11-14 Sept. (2002), Isparta, Turkey (Abstract, p43).

2002

Ramazan Koç, Hayriye Tütüncüler and Eser Körcük, “Exactly solvable position dependent mass Schrödinger equation”, Tr. Physical Society, 21th Physics Conference, 11-14 Sept. (2002), Isparta, Turkey (Abstract, p127).

2002

Ramazan Koç and Mehmet Koca "A Unified Treatment of Quasi-Exactly Solvable Potentials I", http://arxiv.org/abs/math-ph/0505002, unpublished (2002).

2002

Ramazan Koç and Mehmet Koca "A Unified Treatment of Quasi-Exactly Solvable Potentials II", http://arxiv.org/abs/math-ph/0505004, unpublished (2002).

1996

Koç R., Ozkan G., Tütüncüler H. “A laboratory Manual of Vibrations and Waves” Gaziantep 1996.

1995

Koç R, “Automorphism Group of Pure Integral Octonions and Applications in Physics” PhD. Thesis, Çukurova University, Turkey, 1995.

1992

Koç R, “Ultrasonic Tecniques and Equipment for Material Testing”, MSc. Thesis, Gaziantep University, Turkey, 1992.

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