Svetoslav Ivanov's webpage

Address: Sofia University St Kliment Ohridski,
Email: sivanov@phys.uni-sofia.bg, Google Scholar

Professional Data

• Education
• Publications
• Conferences/Visits/Talks
• Research experience
• Skills
• Teaching
• Degrees and Awards
• Partners/References

Education

• Machine Learning Engineer
  Deep Learning, Convolutional Neural Networks, Sequence Models,
  Coursera Certified Courses, 2019-2020


• Software Engineer
  Software University, 2015-2016


• Doctor of Philosophy (Ph.D.)
  Thesis title: Quantum control and information processing in atoms and ions (download)
  Sofia University, 2007 – 2011


• Master's Degree, Quantum Physics, 5.93 (grade average and thesis defence)
  Thesis title: Degenerate Landau-Zener model – Analytical solution (PRA online, download)
  Sofia University, 2005 – 2007


• Bachelor's Degree, Theoretical and Mathematical Physics, 5.92 (grade average and thesis defence)
  Thesis title: Characters of Conformal Supersymmetry Algebras (download)
  Sofia University, 2001 – 2005


• High School, English language, 5.92 (grade average)
  Romain Rolland Foreign Language School, Stara Zagora, 1996 – 2001

Publications

1. E. Stoyanova, S. S. Ivanov, A. A. Rangelov,
   "Arbitrary polarization control by magnetic field variation",
   Applied Optics 59 (33), 10224-10227 (2020)
   [Applied Optics, 2019]
   
   
2. B. T. Torosov, S. S. Ivanov, N. V. Vitanov,
   "Narrowband and passband composite pulses for variable rotations",
   Physical Review A 102 (1), 013105 (2020)
   [PRA QIM, 2019]
   
   
3. E. Stoyanova, S. S. Ivanov, A. A. Rangelov, N. V. Vitanov,
   "Adiabatic motion of a charged particle in spatially uniform and nonuniform static magnetic fields",
   Physica Scripta 94 (5), 055501 (2019)
   [Physica Scripta, 2019]
   
   
4. Ch. Wunderlich, I. Baumgart, J.M. Cai, S.S. Ivanov, Ch. Piltz, M.B. Plenio, Alex Retzker, Th. Sriarunothai, and S. Wolk,
   "Coherent Quantum Fourier Transform Using 3-Qubit Conditional Gates and Ultrasensitive Magnetometry with RF-Driven Trapped Ions",
   OSA QIM (11 pages) (2017).
   [OSA QIM, 2017]
   
   
5. Ch. Piltz, Th. Sriarunothai, S. S. Ivanov, S. Wolk and Ch. Wunderlich,
   "Versatile microwave-driven trapped ion spin system for quantum information processing",
   Science Advances, Vol 2, No. 7 (11 pages) (2016).
   [Science Advances, 2016, view PDF]
   
   
6. S. S. Ivanov, M. Johanning and Ch. Wunderlich,
   "Simplified implementation of the quantum Fourier transform with Ising-type Hamiltonians: Example with ion traps",
   arXiv:1503.08806 (quant-ph), 2015, view PDF]
   
   
7. S. S. Ivanov and N. V. Vitanov,
   "Composite two-qubit gates",
   Physical Review A 92, 022333 (8 pages) (2015).
   [PRA online, arXiv:1503.08788 (quant-ph), view PDF]
   
   
8. S. S. Ivanov, P. A. Ivanov and N. V. Vitanov,
   "Efficient construction of three- and four-qubit quantum gates by global entangling gates",
   Physical Review A 91, 032311 (8 pages) (2015).
   [PRA online, arXiv:1503.02514 (quant-ph), view PDF]
   
   
9. E. Dimova, S. S. Ivanov, G. Popkirov and N. V. Vitanov,
   "Efficient composite broadband polarization retarders and polarization filters",
   Journal of Physics: Conference Series 558, 012033 (2014).
   [JPhys online, view PDF]
   
   
10. E. Dimova, S. S. Ivanov, G. Popkirov and N. V. Vitanov,
    "Highly efficient broadband polarization retarders and tunable polarization filters made of composite stacks of ordinary wave plates",
    Journal of the Optical Society of America A 31, 5 (2014).
    [JOSAA online, arXiv:1207.0452 (quant-ph), view PDF]
    
    
11. S. S. Ivanov, N. V. Vitanov and N. V. Korolkova,
    "Creation of arbitrary Dicke and NOON states of trapped-ion qubits by global addressing with composite pulses",
    New Journal of Physics 15, 023039 (11 pages) (2013).
    [NJP online, arXiv:1209.4488 (quant-ph), view PDF]
    
    
12. P. Ivanov, D. Porras, S. S. Ivanov and F. Schmidt-Kaler,
    "Simulation of Jahn-Teller-Dicke magnetic structural phase transition with trapped ions",
    Journal of Physics B: Atomic, Molecular and Optical Physics 46, 10 (special issue, 19 pages) (2013).
    [JPhysB online, arXiv:1207.0452 (quant-ph), view PDF]
    
    
13. S. S. Ivanov, H. S. Tonchev and N. V. Vitanov,
    "Time-efficient implementation of quantum search with qudits",
    Physical Review A 85, 062321 (5 pages) (2012).
    [PRA online, arXiv:1209.4489 (quant-ph), view PDF]
    
    
14. T. Peters, S. S. Ivanov, D. Englisch, A. A. Rangelov, N. V. Vitanov and T. Halfmann,
    "Variable ultra-broadband and narrowband composite retarders",
    Applied Optics 51, 31, pp. 7466-7474 (9 pages) (2012).
    [Applied Optics online, arXiv:1211.4358 (quant-ph), view PDF]
    
    
15. S. S. Ivanov, A. A. Rangelov, T. Peters, T. Halfmann and N. V. Vitanov,
    "Highly-efficient broadband conversion of light polarization by composite retarders",
    Journal of the Optical Society of America A 29, 3, pp. 265-269 (2012) (5 pages).
    [JOSAA online, arXiv:1110.1289 (quant-ph), view PDF]
    
    
16. S. S. Ivanov and N. V. Vitanov,
    "Scalable uniform construction of highly-conditional quantum gates",
    Physical Review A 84, 022319 (2011) (5 pages).
    [PRA online, arXiv:1106.0270, view PDF]
    
    
17. S. S. Ivanov and N. V. Vitanov,
    "High-fidelity local addressing of trapped ions and atoms by composite sequences of laser pulses",
    Optics Letters 36, 7, pp. 1275-1277 (2011) (3 pages)
    [Opt Lett online, arXiv:1106.0272 (quant-ph), view PDF]
    
    
18. J. Busch,S.De, S. S. Ivanov, B. T. Torosov, T. P. Spiller and A. Beige,
    "Cooling atom-cavity systems into entangled states",
    Physical Review A 84, 022316 (2011) (11 pages).
    [PRA online, arXiv:1105.5151 (quant-ph), view PDF]
    
    
19. S. S. Ivanov, P. A. Ivanov, I. E. Linington and N. V. Vitanov,
    "Scalable quantum search using trapped ions",
    Physical Review A 81, 042328 (2010) (6 pages).
    [PRA online, arXiv:1002.3246 (quant-ph), view PDF]
    
    
20. P. A. Ivanov, S. S. Ivanov, N. V. Vitanov, A. Mering, M. Fleischhauer and K. Singer,
    "Simulation of a quantum phase transition of polaritons with trapped ions",
    Physical Review A 80, 060301(R) (2009) (4 pages).
    [PRA online, arXiv:0905.2593 (quant-ph), view PDF]
    
    
21. M. Krug, T. Bayer, M. Wollenhaupt, C. Sarpe-Tudoran and T. Baumert, S. S. Ivanov and N. V. Vitanov,
    "Coherent strong-field control of multiple states by a single chirped femtosecond laser pulse",
    New Journal of Physics 11, 105051 (2009) (18 pages).
    [NJP online, arXiv:1106.0265 (quant-ph), view PDF]
    
    
22. S. S. Ivanov, P. A. Ivanov and N. V. Vitanov,
    "Simple implementation of a quantum search with trapped ions",
    Physical Review A 78, 030301(R) (2009) (4 pages).
    [PRA online, arXiv:0909.5401 (quant-ph), view PDF]
    
    
23. S. S. Ivanov and N. V. Vitanov,
    "Steering quantum transitions between three crossing energy levels",
    Physical Review A 77, 023406 (2008) (9 pages).
    [PRA online, arXiv:0711.4298 (quant-ph), view PDF]
    
    
24. G. S. Vasilev, S. S. Ivanov and N. V. Vitanov,
    "Degenerate Landau-Zener model: Analytical solution",
    Physical Review A 75, 013417 (2007) (9 pages).
    [PRA online, arXiv:0909.5396 (quant-ph), view PDF]
    
    
    Link to ArXiv

Dissertations

• "Quantum control and information processing in atoms and ions",
  PhD dissertation, Sofia University "St. Kliment Ohridski", 2010.
  Paper copy available in the library of the Bulgarian Academy of Sciences
  72 Tsarigradsko Chaussee Blvd, Sofia 1784, Bulgaria
  download electronic form

Research experience

• 2016, Institut für Angewandte Physik, Technische Universität Darmstadt, Germany
  Collaborator: Prof. Dr. Thomas Halfmann
  Research: Quantum memory by composite coherence-population mapping in doped solids (2 months)
  
  
• 2015, Singapore University of Technology and Design, Singapore
  Collaborator: Dr. Elica Kyoseva
  Research: Pulse shaping with composite birefringent crystals
  
  
• 2013, Experimental Quantum Optics group, University of Siegen, Germany
  Collaborator: Prof. Dr. Christof Wunderlich
  Research: Implementation of the quantum Fourier transform with microwave-driven ion traps (4 months)
  
  
• 2012, Quantum Optics and Quantum Information group, University of St Andrews, UK
  Collaborator: Dr. Natalia V. Korolkova
  Research: Quantum information processing techniques for trapped-ion systems (15 months)
  
  
• 2010, Developer of an open source C++ project, http://vitoshatrade.svn.sourceforge.net/ (4 months)
  
  
• 2010, Quantum and Non-Linear Dynamics group, University of Bourgogne, France
  Collaborator: Prof. Stephane Guerin
  Research: Implementation of the Toffoli gate with laser-driven ion traps (5 months)
  
  
• 2010, Quantum Information group, School of Physics & Astronomy, University of Leeds, UK
  Collaborator: Dr. Almut Beige
  Research: Engineering of entangled atomic states in a cavity by laser cooling (6 months)
  
  
• 2009, Femtosecond Spectroscopy and Ultrafast Laser Control group, University of Kassel, Germany
  Collaborator: Prof. Thomas Baumert and Dr. Matthias Wollenhaupt
  Research: Selective population transfer between sodium atom states by chirped strong-field femtosecond laser pulses (6 months)
  
  
• 2006-present, Quantum Optics and Quantum Information group, Sofia University, Bulgaria
  Collaborator: Prof. DSc. Nikolay V. Vitanov (PhD supervisor)
  Research: Coherent control of quantum systems, quantum algorithms and gates, quantum simulations, trapped ions and atoms
  Teaching assistant: subjects are Complex analysis, Electrodynamics, Quantum mechanics
  
  
• 2001, Space Research Center, Polish Academy of Sciences, Poland
  Collaborator: Prof. Slawomira E. Szutowicz
  Research: Photometry of the Comet C/1999 S4 (LINEAR) in the Region of the Emissions of C2 (1 month)
  

Conferences/Visits/Talks

• iQIT meeting, UK, Brighton, October 2014 (talk)
• CAMEL 10, Control of Quantum Dynamics of Atoms, Molecules and Ensembles by Light, Nesebar, Bulgaria, June 2014 (talk).
• iQIT meeting, Denmark, Billund, April 2014 (talk)
• iQIT meeting, Greece, Corfu, October 2013 (talk)
• CAMEL 9, Control of Quantum Dynamics of Atoms, Molecules and Ensembles by Light, Nesebar, Bulgaria, June 2013 (talk).
• iQIT meeting, Slovakia, Bratislava, April 2013 (talk)
• iQIT meeting, Italy, Salerno, October 2012 (talk)
• Visit to the University of Mainz, group of Prof. Ferdinand Schmidt-Kaller and Dr. Kilian Singer, Germany, May 2012 (talk)
• iQIT meeting, Jena, Germany, April 2012 (talk)
• Visit to the University of Siegen, group of Prof. Dr. Christof Wunderlich, Germany, April 2012 (talk)
• CAMEL 8, Control of Quantum Dynamics of Atoms, Molecules and Ensembles by Light, Nesebar, Bulgaria, June 2012 (talk).
• Cost action QIon, Workshop on Quantum Information and Quantum Dynamics in Ion Traps, Madrid, Spain, April 2011 (poster)
• CAMEL 7, Control of Quantum Dynamics of Atoms, Molecules and Ensembles by Light, Nesebar, Bulgaria, June 2011 (talk).
• Visit to the University of Innsbruck, group of Dr. Barbara Kraus, Austria, October 2010 (talk)
• Visit to the University of Bourgogne, group of Prof. Stephane Guerin, Dijon, France, Semtember 2010 (seminar)
• ICAP, International Conference on Atomic Physics, Cairns, Australia, July 2010 (poster)
• QCMC, Quantum Communication, Measurement and Computation, Brisbane, Australia, July 2010 (poster)
• CAMEL 6, Control of Quantum Dynamics of Atoms, Molecules and Ensembles by Light, Nesebar, Bulgaria, June 2010 (talk).
• CEWQO, Central European Workshop on Quantum Optics, St. Andrews, UK, June 2010 (poster)
• University of Leeds, group of Dr. Almut Beige, UK, November 2009 (talk).
• CAMEL 5, Control of Quantum Dynamics of Atoms, Molecules and Ensembles by Light, Nesebar, Bulgaria, June 2009 (talk).
• Visit to the University of Kassel, group of Prof. Thomas Baumert, Germany, Semtember 2009 (talk)
• CEWQO, Central European Workshop on Quantum Optics, Finland, May 2009 (poster)
• Quantum Information and Many-Body Systems International School, Cortona, Italy, May 2009
• QIPC, Quantum Information Processing and Communications, Italy, Rome 2009 (poster)
• CAMEL 4, Control of Quantum Dynamics of Atoms, Molecules and Ensembles by Light, Nesebar, Bulgaria, June 2008 (talk).
• EGAS, European Group for Atomic Systems, Austria, Graz July 2008 (poster)
• CEWQO, Central European Workshop on Quantum Optics, Italy, Palermo June 2007 (poster)
• PAQ07, Photons, Atoms and Qubits Conference, UK, London September 2007 (poster)
  

Computer Skills

• Python, Pandas, NumPy, SciPy, Sklearn, PyTorch, Qiskit
• C, C# ( 1, 2, 3), Java, Wolfram Mathematica, MATLAB
• Git, SQL, MongoDB
• Oracle Grid Engine
• Latex, HTML

Scientific Interests / Skills

• Quantum Control, Quantum Computing

Teaching:

• Optics (lectures and seminars), Sofia University, 2013-present.
• Electricity and Magnetism (seminars), Sofia University, 2013-present.
• Complex Analysis (seminars), Sofia University, 2013-present.
• Math workshops (2nd year), University of St Andrews, Fall-2012.
• Physics workshops (2nd year): Mechanics, Thermal Physics, Oscillations, Special Relativity, University of St Andrews, Fall-2012.

Memberships

• International Committee for organising and conducting of the International Astronomy Olympiad for high-school students, 2016-present
  
• National committee for organising and conducting of the National Physics Olympiad for high-school students, 2011-present
  

Degrees and Awards

• Awarded by the Scottish Universities Physics Alliance (SUPA Alumni), 2012
• Nominated for the most successful doctoral research in Bulgaria, 2010
• Ph.D. in theoretical physics, "Quantum Control and Information Processing in Atoms and Ions", Sofia University, Bulgaria, supervisor Prof. Dr. Nikolay V. Vitanov, 2010
• Awarded by the Deutscher Akademischer Austausch Dienst (DAAD Alumni), 2008
• M.Sc. in theoretical physics, "Degenerate Landau-Zener model: Analytical solution", Sofia University, Bulgaria, supervisor Prof. Dr. Nikolay V. Vitanov, 2006
• B.Sc. in theoretical physics, "Characters of Conformal Supersymmetry Algebras", Sofia University, Bulgaria, supervisor Prof. Dr. Vladimir K. Dobrev, 2005
• Honoured by the Ministry of Science and Education for high academic achievements, 2005
• Honoured by Sofia University with Michael Klett prize for high academic achievements, 2004
• Awarded a 4-year stipend by the Eureka Foundation for high academic achievements, 2001
• Prize from the 9th international competition First Step to Nobel Prize in Physics, 2001
• Silver medal from the 32nd International Physics Olympiad, Turkey, 2001
• Silver medal from the 4th International Astronomy Olympiad, Ukraine, 1999
  

Grants

• European Commission - MicroQC
• European Commission - FP7 Research and Training Network EMALI
• European Commission - FP7-PEOPLE-2007-1-1-ITN FASTQUAST
• Deutscher Akademischer Austauschdienst 2008
• Alexander von Humboldt 2012 - 2016
• Bulgarian NSF Grant No. VU-F-205/06
• Bulgarian NSF Grant No. VU-I-301/07
• Bulgarian NSF Grant No. D002-90/08
• Sofia University Grant No. 020/2009

Partners/References

• Prof. Dr. Nikolay Vitanov, Sofia University, Department of Physics, Quantum Optics and Quantum Information group
• Prof. Dr. Thomas Halfmann, Darmstadt University of Technology, Institut für Angewandte Physik, Nonlinear Optics/Quantum Optics
• Prof. Dr. Christof Wunderlich, University of Siegen, Department Physik - Fakultät IV
• Dr. Natalia Korolkova, University of Saint Andrews, School of Physics and Astronomy, Quantum Optics and Quantum Information group
• Prof. Dr. Thomas Baumert, University of Kassel, Institute of Physics, Experimentalphysik III - Femtosekundenspetroskopie und ultraschnelle Laserkontrolle
• Dr. Matthias Wollenhaupt, University of Kassel, Institute of Physics, Experimentalphysik III - Femtosekundenspetroskopie und ultraschnelle Laserkontrolle
• Prof. Dr. Ferdinand Schmidt-Kaler , University of Mainz, Institute of Physics, Arbeitsgruppe Quanten-, Atom- und Neutronenphysik
• Dr. Almut Beige, University of Leeds, School of Physics & Astronomy, Quantum Optics and Quantum Information group
• Prof. Dr. Vladimir Dobrev, Bulgarian Academy of Sciences, Institute of Nuclear Research and Nuclear Energy
  

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