ACADEMIC DEGREES

RESEARCH INTEREST

Quantum Field Theory

EMPLOYMENT HISTORY

Istanbul Technical University, Faculty of Sciences and Letters, Department of Physics, 1986- 2010*

(*retired due to age limit)

Bogazici University, Faculty of Sciences and Letters, Department of Physics, 1972-1986

University at Pittsburgh, Department of Physics, 1966-1971

Robert College, School of Arts and Sciences, Department of Physics, Student Assistant 1963-1966
 

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As part time employment worked  at the Physics Department of Marmara Research Center and later at Feza Gürsey Institute of  TÜBİTAK.   

For a while was chairman of the physics department at Marmara Research Center

Founded the TÜBİTAK TBAG Çalışma Grubu (ÇG/1) in 1991 and acted as the first head of the group.  At this position organized many local and national conferences.

Is a member of the Academy of Sciences of Turkey .  was elected as associate member in 1994 and was promoted to a full member in 1997, resigned on November 3, 2011.

Got the TÜBİTAK Teşvik Ödülü ( Encouragement prize)  in 1981.

Got the Alexandre von Humboldt Stiftung scholarship in between 1978-80

Between 1982-87 was an associate member of International Centre for Theoretical Physics at Trieste, Italy.

Was a board member and the chairman of the local organization committee at the 1st and 2nd Regional ICFA Instrumentation Summer Schools in 2002 and 2005.

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Thesis Advisees:

Ph.D. :

1984  Prof. Dr. Jan Kalaycı, retired from ITU ("On the classical solutions of field theoretical models")

1994  Prof. Dr. Neşe Özdemir, ITU ("Küresel dalgalarda vakum dalgalanmaları")

1999  Assistant Prof. Dr. Reyhan Kaya, Yıldız Technical University ("Üç değişik metrik fon uzayında skaler bir alanın kuantum dalgalanmaları")

2002   Dr. Kayhan Ülker, Researcher at Feza Gürsey Institute ("Süpersimetrik alan teorilerinin kohomolojik yapıları")  

2008 Dr. Ferhat Taşkın, Erciyes University ("Vektör tipi Gürsey modeli ve modelin renormalizasyon grubu analizi")

2008 Dr. Tolga Birkandan ("A Study of Wave Equations in Five Dimensional Spacetimes Using Computational Methods")

2009 Dr. Bekir Can Lütfüoğlu ("Non Perturbative Investigation of a Fermionic Model")

       M.S.

1978    Prof. Dr. Nihal Ercan, Boğaziçi University, Physics Department ("Renormalization properties and the existence of phase transitions")

1990    Prof. Dr. Neşe Özdemir, ITU  Physics Department ("BFV metodu ile bağlı sistemlerdeki iz integrallerinin hesaplama yöntemi")

1990 Assistant Prof. Dr.Reyhan Kaya, Yıldız Technical University, Physics Department ("BRST ve antiBRST simetrilerinde genel hayalet dekuple teoremi")

     1992  Ahmet Çatal ,  was an assistant at Afyon University ("w cebirleri")  

1992 Şevket Gündüz,  Physics Instructor at Deniz Lisesi ("İki boyutlu kuantum alan teorisinde sonsuz konform simetri")

1994  Iskender Hanci ,self employed ("Anyon kuantum mekaniği: Chern-Simons modeli")

1995 Sebahattin Ünal ,self employed ("Chern-Simons terimi olmaksızın anyonların kuantum alanı")

1996 Assistant Prof. Dr. Yücel Enginer, at Gebze Institute of Technology ("Gravitasyon alanında parçacık yaratımı")

1997   Dr. Kayhan Ulker, Feza Gürsey Institute, researcher ("Spherical gravitational shock waves")

1998   B.Can Lutfuoglu,  research assistant at ITU ("Düzlemsel bir gravitasyonel dalga fonunda propagasyon")

  2000 Dr. Barış Yapışkan, former research assistant at  ITU ("Newman-Penrose formalizmi ve bazı uygulamaları")

       2002 Tolga Birkandan, research assistant at ITU ("Üç boyutlu anti deSitter uzayında Einstein denklemlerinin varlığında çözümler")

       2003 Hasan Tuncay Özçelik, works at private sector ("2+1 boyutta konformal gerilim-enerji tansörlü bir skaler alanın kütle-çekim ile etkileşmesi")

       2006 Nail Al, works at private sector ("Newman-Penrose formalizmi ve uygulamaları")

PUBLICATIONS

A - Articles in Science Index
B - Other Articles
C - Conferences
 

A - ARTICLES IN SCIENCE INDEX

1. M. Hortacsu, R.Seiler, B. Schroer, "Conformal Symmetry and Reverberations", Physical Review D5, 2519 (1972).

2. M. Hortacsu, "On Conformal Covariance in Thiring Model", Nuovo Cimento 34A, 411 (1973). 

3. M. Hortacsu, "Demonstration of Noncausality in the Rarita - Schwinger Equation", Physical Review D9, 928, (1974) 

4. M. Hortacsu, "The Reality Symmetry in Thiring Model", Nuovo Cimento 34A, 639 (1976).

5. M. Hortacsu, "Electromagnetic Contributions to the Thirring Model Effective Potential ", Nuovo Cimento 36A (1976) 43.

6. M. Hortacsu, "Scattering Solutions in a Potential Derived from the Bound State Solutions for the Massive Thiring Model", Nouvo Cimento 35A, 518 (1976).

7. M. Hortacsu, "Confined Solutions of the Thiring Model Coupled to a Schwinger Field", Physical Review D15, 3003 (1977).
8. M. Hortacsu, "Reflectivity of Solutions in the Massive Thiring Model Potential", Physical Review D15, 3760 (1977).

9. M. Hortacsu, "Interactions of Instantons with a Fermion Field in a 1+1 Dimensional Model", Physical Review D20, 496 (1979).

10. M. Hortacsu, B. Schroer, H. J. Thun, "A Two Dimensional Sigma Model with Particle Productions", Nuclear Physics B154 (1979).

11. M. Hortacsu, K. D. Rothe, B. Schroer, "Generalized Two Dimensional QED and Functional Determinants", Physical Review D20, 3203 (1979).

12. M. Hortacsu, K. D. Rothe, B. Schroer, "1/N Expantions in Quantum Field Theories with Nonisoscalar Gluons", Nuclear Physics B164, 33 (1980).

13. M. Hortacsu, K. D. Rothe, B. Schroer, "Zero Energy Eigenstates for the Dirac Boundary Problem", Nuclear Physics B171, 363  (1980).

14. M. Hortacsu, K. D. Rothe, B. Schroer, "Still More about the Fermion Determinant in QED2", Physical Review D22, 3145 (1980).

15. M. Hortacsu, "1/N Calculation of CP(N-1) Structure Functions", Nuclear Physics B186, 573 (1981).

16. K. G. Akdeniz, M. Hortacsu, "Functional Determinant for the Thiring Model with Instanton", Nuovo Cimento 59A, 181  (1980).

17. K. G. Akdeniz, M. Hortacsu, "Stability of Merons in Spinor Models", Physics Letters 114B, 254 (1982).

18. K. G. Akdeniz, M. Arik, M. Durgut, M. Hortacsu, S. Kaptanoglu, N. K. Pak, "Quantization of the Gursey Model", Physics Letters 116B, 34 (1982).

19. K. G. Akdeniz, M. Arik, M. Durgut, M. Hortacsu, S. Kaptanoglu, N. K. Pak, "A Pure Spinor Model With Compozite Gluons", Physics Letters 116B, 41 (1982).

20. K. G. Akdeniz, M. Arik, M. Hortacsu, N. K. Pak, "Gauge Bosons as Composites of Fermions", Physics Letters 124B, 79  (1983).

21. M. Hortacsu, "Index Theorem for Merons", Lett. Nuovo Cimento, 36, 109 (1983).

22. K. G. Akdeniz, M. Hortacsu, "New Meron Type Solution", Lett. Mathematical Physics, 7 (1983).

23. K. G. Akdeniz, M. Hortacsu, "A Meron Determinant Calculation", Lett. Nuovo Cimento, 36, 397  (1983).

24. M. Arik, M. Hortacsu, "Parton-like Behavior in a Pure Fermionic Model", Journal of Physics G, Nuclear Physics L119, 9 (1983).

25. M.Arik, M. Hortacsu, "Number of Families in a Pure Fermionoc Model", Journal of Physics G, Nuclear Physics L233, 9 (1983).

26. M.Arik, M. Hortacsu, J. Kalayci, "Composite Gluons and Magnetic Monopole", Lett. Mathematical Physics, 8, 145 (1984).
 
27. M. Hortacsu, N. K. Pak, "Is Electric Charge Conserved in Monopole-Fermion Scattering", Journal of Physics G, Nuclear Physics, 10, 1477 (1984).

28. M. Hortacsu, J. Kalayci, N. K. Pak, "A Possible Problem With the Rubakov - Callan Condansate Formation for Massive Fermions", Physics Letters 145B, 411 (1984).
 
29. M.Arik, M. Hortacsu, J. Kalayci, "Composite Gluons and Magnetic Monopoles", Journal of Physics G, Nuclear Physics, 11, 1 (1985).

30. K. G. Akdeniz, C. Dane, M. Hortacsu, "Eigenmodes for Fluctuations about the Classical Solutions in the Generalized Liouville Equation", Physical Review D37, 3074 (1988).

31. M. Hortacsu, "A Quantization Scheme for Scale Invariant Pure Gauge Theories", Physics Letters B207, 457, (1988).

32. D. Dibekci, M. Hortacsu, J. Kalayci, "Monopole Solutions in Scale Invariant Theories", Physics Letters B209, 516  (1988).
33. M. Hortacsu, J. Kalayci, "Propagators in Higher Dimensional Scale Invariant Gauge Theories", Physics Letters B221, 319 (1989).

34. M. Hortacsu, "Quantum Fluctuations in the Field of an Impulsive Spherical Gravitational Wave", Classical and Quantum Gravity, 7, L165 (1990), Errantum: 9, 799, (1992).

35. D. Dibekci, M. Hortacsu, J. Kalayci, H. Ozbek, "A Monopole-like Classical Solution to a Purely Fermionic of Even Dimensions", Lett. Mathematical Physics, 22, 203 (1991).

36. M. Hortacsu, "Singularities With C(0) Metrics", Lett. Mathematical Physics, 23, 301 (1991).

37. M. Hortacsu, "Quantum Fluctuations of a Spherical Gravitational Shock Wave", Classical and Quantum Gravity, 9, 1619 (1992).

38. M. Hortacsu, "Fluctuations of a Spherical Gravitational Impulsive Wave", J. Mathematical Physics, 34, 690, (1993), Erantum in 37, 4199 (1996). 

39. M. Hortacsu,  Nese Ozdemir, "Reduction of Space - Time by a Constraint for C(0) Metrics",  J. Mathematical Physics, 35, 173 (1994). 

40. M. Hortacsu,  R. Kaya, "Fluctuations of a Rotating Impulsive Wave ", J. Mathemetical Physics, 35, 3043 (1994), Erratum in 37, 4199 (1996).

41. Nese Ozdemir, M. Hortacsu, "Quantum Fluctuations of Spherical Gravitrational Shock Wave 2", Classical and Quantum Gravity, 12, 1221 (1995).

42. A. H. Bilge, M. Hortacsu, N. Ozdemir, "Particle Creation If A Cosmic String Snaps", General Relativity and Gravitation, 28,  pp. 511-526 (1996). gr-qc/9410020

43. M. Hortacsu, "Vacuum Fluctuations for Spherical Gravitational Impulsive Waves ", Classical and Quantum Gravity, 13, pp. 2683 - 2691(1996) gr-qc/9803063.

44. A. N. Aliev, M. Hortacsu, N. Ozdemir, "Vacuum Fluctuations of a Massless Spin-1/2 Field Around Multiple Cosmic Strings", Classical and Quantum Gravity, 14, 3215 (1997) gr-qc/9803044.

45. Y. Enginer, M. Hortacsu, N, Ozdemir, "Quantum Fluctuations of a Scalar Field in the Space - Time of a Gravitational Wave",  International J. Modern Physics A, 13, pp. 1201 - 1211 (1998) gr-qc/9802039.

46. M. Hortacsu, K. Ulker, "Gravitational Shock Waves and Quantum Fluctuations", Class. Quant. Gravity, 15, pp. 1415 - 1420  (1998) hep-th/9802072.

47. A. H. Bilge, M. Hortacsu, N. Ozdemir, "Can an Unruh Detector Feel a Cosmic String?", General Relativity and Gravitation,  30, pp. 861 - 876 (1998) gr-qc/9709017.  

48. M. Hortacsu, R. Kaya, "Comparison of Exact and Perturbative Results for Two Metrics", General Relativity and Gravitation,  30, 1645, (1998) gr-qc/9809027.  

49. Y. Enginer, M. Hortacsu, R. Kaya, N. Ozdemir, K. Ulker, B. Yapiskan, "Quantum Fluctuations of Some Gravitational Waves", Indian J. Pure Appl. Math., 29, 1029, (1998) gr-qc/9809028.   

50.  M. Hortacsu, N. Ozdemir, "Cancellation of Ultraviolet Divergences for Locally Flat Metrics", Modern Physics Letters A ,  13, 3081, (1998) gr-qc/9709001.  

51. Aliev A.N, Hortacsu M, Kalayci J, et al., "Gravitational instantons from minimal surfaces", CLASSICAL QUANT GRAV 16: (2) 631-642 FEB 1999 gr-qc/9812007

52. Hortacsu M, Lutfuoglu B.C. , "Spurious effects in perturbative calculations", GEN RELAT GRAVIT 31: (3) 391-403 MAR 1999 gr-qc/9812037

53. Hortacsu M, Ulker K ,"Equivalence of constrained models", INT J THEOR PHYS 38: (5) 1429-1438 MAY 1999 hep-th/9810173

54. Hortacsu M, Birkandan T. , "Three dimensional gravity in the presence of scalar fields.", GEN RELAT GRAVIT 35:  457-466  (2003) gr-qc/0104096

55. Hortacsu M. , "Explicit examples on conformal invariance.", INT.J.THEOR.PHYS.42:49, (2003) 1999 hep-th/0106080

56. Hortaçsu M., Özçelik H.T., Yapışkan B. ”Properties of solutions in (2+1)-dimensions.", ", GEN. RELAT. GRAVIT. 35:  1209-1221, (2003) gr-qc/0302005

57. Hortaçsu M., Lütfüoğlu B.C. ”A pure spinor model with interacting composites.", MOD. PHYS. LETT. A21: 653-662, (2006) hep-th/0506024

58. Hortaçsu M., Taşkın, F. "Another Model with Interacting Composites", Int.J.Mod.Phys.A22:83-94, (2007) hep-th/0605217

59. Birkandan T., Hortaçsu M. "Examples of Heun and Mathieu functions as solutions of wave equations in curved spaces", J.Phys.A40:1105-1116, (2007) gr-qc/0607108

60. Hortaçsu M., Lütfüoğlu B.C. "Renormalization group analysis of a Gursey-model-inspired field theory", Phys.Rev.D76:025013, (2007) hep-th/0703103

61. Birkandan T., Hortaçsu M. "Dirac equation in the background of the Nutku helicoid metric", J. Math. Phys. 48, 092301 (2007) arXiv:0706.2543

62. Hortaçsu M., Lütfüoğlu B.C., Taşkın, F. "Gauged System Mimicking The Gürsey Model", Mod. Phys. Lett. A22 (33) 2521 - 2531 (2007) hep-th/0611116

63.Birkandan T., Hortaçsu M. "Singularity Structure and Stability Analysis of the Dirac Equation on the Boundary of the Nutku Helicoid Solution ", published as Comment on "Dirac equation in the background of the Nutku helicoid metric", J. Math. Phys. 49 , 054101 (2008) arXiv: 0711.0612 [gr-qc]
 

B - OTHER ARTICLES
 

1. "Notes on Conformal Invariance in Quantum Field Theory", Bogazici University Journal, TB 1, 15 (1973).

2. "Remarks on Lightlike Quantization", Bogazici University Journal TB 1, 43 (1973). 

3. "On the Noncausality of the Rarita - Schwinger Equation", Bogazici University Journal, Physics, 3, 31, (1975).

4. "Comment on the Classical Stationary Solutions", Bogazici University Journal, Physics, 6, 13 (1978).

5. "A Remark on Two Dimensional Sigma Models with Particle Production", Bogazici University Journal, Physics, 8-9, 49 (1980-81). 

6. "Equivalence of Certain Four Fermion Models to QCD and Triviality", Bulletin of the Technical University of Istanbul, 47, 321 (1994). 

7. "Notes on Choptuik Phenomena", ARI, The Bulletin of the Istanbul Technical University, 54(5), 62 (2007).
 

  C - CONFERENCES
 

1. M. Hortacsu, "Charge-Conjugation Symmetry in Two-Dimensional Models", Europan Conference on Particle Physics, Conference Abstracts p.298, (1977).

2. M. Arik, M. Hortacsu, "Conformal Invariant Pure Spinor Models", International Colloguuioum on Group Theoretical Methods in Physics, Springer Lecture Notes in Physics, der. E. Inonu, M. Serdaroglu , 180, pp. 154 - 157, Springer Verlag (1983).

3. M. Arik, M. Hortacsu, J. Kalayci, "Magnetic Monopoles in Purely Fermionic Models", Monopole 1983, der. James LK. Stone, Nato ASI Series, Series B, Physics, 111 (1985).

4. M. Hortacsu, R. Kaya, N. Ozdemir, "Quantum Fluctuations in the Presence of Gravitational Waves", Lecture Notes in Physics, "Strings and Symmetries", der. G. Aktas, C. Saclioglu, M. Serdaroglu, pp. 297 - 302, Springer Verlag (1995).

5. M. Hortacsu, "What If the Cosmic String Snaps?", Doga, Turkish J. Physics, 17, 702 (1993).

6. M. Hortacsu, "Vacuum Fluctuations in the Presence of Spherical Gravitational Impulsive Wave", Tr. J. of Physics, 21, 399 (1997).

7. A. N. Aliev, M. Hortacsu, N. Ozdemir, "Vacuum Fluctuations of Massless Vector and Spinor Fields around Multiple Cosmic Strings", 15th International Conference on General Relativity and Gravitation, Dec. 16-21, 1997, Pune, India, p. 276 in Conference Abstracts.

8. M. Hortacsu, "A Detour in de Sitter Space while Calculating Vacuum Fluctuations",  Tr. J. of Physics, 24, 359 (2000).

9. M. Hortacsu, "Notes on Choptuik phenomena", Research Semester on Gravitation and Cosmology, Istanbul, Turkey (2003) (gr-qc/0306097).

10. M. Hortacsu, "Conformal symmetry and triviality", Meeting for 60th Birthday of T.U. at ITU (2003), ARI, The Bulletin of the Istanbul Technical University, vol.53, number 2, 10; (hep-th/0302166).

11. T. Birkandan, M. Hortacsu, " Examples of Heun and Mathieu Functions as Solutions of Wave Equations in Curved Spaces ", EAS Publications Series 30, 265 (2008) ( arXiv: 0710.4243 [gr-qc])