Phenomena and Theoretical Methods of Bose-Einstein Condensates (Heidelberg SS 2011)

Curriculum Vitae 

 

Personal Data


Name

Alexej Iwanowitsch Streltsov

Date and place of birth

04 July 1974 in Vladivostok (Russia)

Home address

D-69123 Germany, Heidelberg, Im Dörning 28

Home phone    cell

+49 6221  7507932

 015206855907

Marital Status

Married (Olessia) + son(Pawel)

Citizenship

Russian


 

Contact Information

 

Work phone: +49 6221 54 52 09
Work Fax: +49 6221 54 52 21

Work address: Theoretische Chemie Physikalisch-Chemisches Institut 

                        Im Neuenheimer Feld 229,  D-69120 Heidelberg, Germany

Email: Alexej.Streltsov@pci.uni-heidelberg.de

 

WWW: http://www.pci.uni-heidelberg.de/tc/usr/alexej/

 

Education

1991 –1996

Graduate studies of Physics at the Far Eastern State University, Vladivostok, Russia

1996 – 1999

Postgraduate studies of Physics at the Far Eastern State University, Vladivostok, Russia

1999 – 2000

Advanced studies at the University of Heidelberg, Germany

2000 – 2005

Ph.D. student at the Physical Chemistry Institute, University of Heidelberg, Germany
Inter- and Intra-atomic processes accompanying core-ionization of atomic and molecular clusters (diss.pdf)

2005 – 2010

Post-doctoral fellow at the Physical Chemistry Institute, University of Heidelberg, Germany

2011 – 2012

Habilitation at the Faculty of Physics and Astronomy, University of Heidelberg, Germany Interplay between Fragmentation and Condensation in statical and highly non-equilibrium dynamical processes in ultracold bosonic clouds:Novel phenomena, new understanding and future perspectives (habil.pdf 17MB)

 Professional Experience



1993 – 1996

Engineer, Laboratory of Optical Spectroscopy,

 

Far Eastern State University, Vladivostok, Russia

1996 – 1999

Junior Research Associate, Laboratory of Electronic Spectroscopy,

 

Far Eastern State University, Vladivostok, Russia

2000 – 2006

Research Associate, Theoretical Chemistry Group,

 

Physical Chemistry Institute, University of Heidelberg, Germany

2006 – 2010

Scientific Researcher, Theoretical Chemistry Group,


Physical Chemistry Institute, University of Heidelberg, Germany 

2010 – present

Leader of the "Many-Body Theory of Bosons" group


Physical Chemistry Institute, University of Heidelberg, Germany

Honors and Awards

1995

G. Soros Foundation grant for students

1996

Student scholarship of the President of the Russian Federation (diploma N.22)

1996

Diploma in Physics of the Far Eastern State University, Graduated with honors

1999

Scholarship of the DAAD (German Academic Exchange Service)

2004

Scholarship of the Dr. Sophie-Bernthsen Foundation

Scientific and Research Interests

·        Fermions: Atoms, Molecules and Clusters

o       Properties of the ground and highly excited states

o       Inter- and intra-atomic (molecular) processes accompanying ionization and excitation

·        Bosons: Bose-Einstein Condensates

o       Static and dynamic properties of the ground and excited states

o       Fragmentation, fermionization, phase transitions

o       Many-body effects and their description beyond standard mean-field

·        Multi-component quantum systems:

o       Bose-Bose, Bose-Fermi, Fermi-Fermi mixtures

o       Conversion between particles: How to?

·        Quantum Theories of Many-Particle Fermionic, Bosonic and mixed Systems

o       Ab initio methods and computational techniques in modern Quantum Chemistry

o       Variational principles in many-body theories

o       Numerical solutions of multi-dimensional non-linear integro-differential equations

Package created: MCTDHB

Multi-Configurational Time-Dependent Hartree for Bosons is a scientific package

to solve Time-Dependent Schrödinger Equation for bosons. It solves coupled

systems of non-linear integro-differential time-dependent equations and analyses

the solutions obtained. It contains more then hundred independent subroutines and

utilizes different combinations of massive (MPI and OpenMP) parallelization

schemes.



Course on BEC in summer 2011 (Heidelberg)

Complete Publication List

Bose-Einstein Condensation and Ultra-cold atoms

  1. Number fluctuations of cold, spatially split bosonic objects: Phys. Rev. A 84, 053622 (2011).

  2. Recursive formulation of the multiconfigurational time-dependent Hartree method for fermions, bosons and mixtures thereof in terms of one-body density operators: Chemical Physics, In Press, Corrected Proof, Available online 8 October 2011

  3. Swift Loss of Coherence of Soliton Trains in Attractive Bose-Einstein Condensates: Phys. Rev. Lett. 106, 240401 (2011).

  4. Accurate multi-boson long-time dynamics in triple-well periodic traps: Phys. Rev. A 83, 043604 (2011). arXiv:0910.5916

  5. Optimal time-dependent lattice models for nonequilibrium dynamics: New J. Phys. 13, 043003 (2011).

  6. Fragmented many-body states of definite angular momentum and stability of attractive three-dimensional condensates: Phys. Rev. A 82, 033613 (2010).

  7. Quantum dynamics of attractive versus repulsive bosonic Josephson junctions: Bose-Hubbard and full-Hamiltonian results: Phys. Rev. A 82, 013620 (2010).

  8. General mapping for bosonic and fermionic operators in Fock space: Phys. Rev. A 81, 022124 (2010). arXiv:0910.2577

  9. Exact quantum dynamics of a bosonic Josephson junction: Physical Review Letters Volume 103, 220601 (2009). arXiv:0905.0902

  10. Scattering of an attractive Bose-Einstein condensate from a barrier: Formation of quantum superposition states: Phys. Rev. A 80, 043616 (2009). arXiv:0812.3573 (see also: Virtual Journal of Atomic Quantum Fluids -- November 2009)

  11. Efficient generation and properties of mesoscopic quantum superposition states in an attractive Bose–Einstein condensate threaded by a potential barrier: J. Phys. B: At. Mol. Opt. Phys. 42, 091004 (2009).

  12. Exact decay and tunneling dynamics of interacting few boson systems: J. Phys. B: At. Mol. Opt. Phys. 42, 044018 (2009); see also a corrigendum for this article 2010 J. Phys. B: At. Mol. Opt. Phys. 43 029802.

  13. The Multiconfigurational Time-Dependent Hartree Method for Identical Particles and Mixtures Thereof in Multidimensional Quantum Dynamics: MCTDH Theory and Applications edited by H.-D. Meyer, F. Gatti, G. A. Worth, (Wiley-VCH, Weinheim, 2009).

  14. Build-up of coherence between initially-independent subsystems: The case of Bose–Einstein condensates: Physics Letters A Volume 373, 301 (2009). arXiv:0712.3955

  15. Reduced density matrices and coherence of trapped interacting bosons: Phys. Rev. A 78, 023615 (2009). arXiv:0802.3417

  16. Many-body theory for systems with particle conversion: Extending the multiconfigurational time-dependent Hartree method: Phys. Rev. A 79, 022503 (2008). arXiv:0811.3853

  17. Formation and Dynamics of Many-Boson Fragmented States in One-Dimensional Attractive Ultracold Gases: Physical Review Letters, Volume 100, 130401 (2008). arXiv:0711.2778

  18. Fragmented Metastable States Exist in an Attractive Bose-Einstein Condensate for Atom Numbers Well above the Critical Number of the Gross-Pitaevskii Theory Physical Review Letters, Volume 100, 040402 (2008). arXiv:0705.1802

  19. Multiconfigurational time-dependent Hartree method for bosons: Many-body dynamics of bosonic systems: Phys. Rev. A 77, 033613 (2008). arXiv:cond-mat/0703237

  20. Unified view on multiconfigurational time-propagation for systems consisting of identical particles: J. Chem. Phys. 127, 154103 (2007).

  21. Role of Excited States in the Splitting of a Trapped Interacting Bose-Einstein Condensate by a Time-Dependent Barrier: Physical Review Letters, Volume 99, 030402 (2007). arXiv:cond-mat/0612616

  22. Multiconfigurational time-dependent Hartree method for mixtures consisting of two types of identical particles Phys. Rev. A 76, 062501 (2007).

  23. Multiorbital mean-field approach for bosons, spinor bosons, and Bose-Bose and Bose-Fermi mixtures in real-space optical lattices  Phys. Rev. A 76, 013611 (2007).

  24. Interferences in the Density of Two Bose-Einstein Condensates Consisting of Identical or Different Atoms: Physical Review Letters, Volume 98, 110405 (2007). arXiv:cond-mat/0701277

  25. Time-dependent multi-orbital mean-field for fragmented Bose–Einstein condensates: Physics Letters A 362, 453 (2007). arXiv:cond-mat/0607490

  26. Demixing of Bosonic Mixtures in Optical Lattices from Macroscopic to Microscopic Scales Physical Review Letters 97, 230403 (2006). arXiv:cond-mat/0605140

  27. Coupled-cluster theory for bosons in rings and optical lattices: J. Mol. Struct., (Theochem) 768, 151 (2006).

  28. General variational many-body theory with complete self-consistency for trapped bosonic systems: Phys. Rev. A 73, 063626 (2006). arXiv:cond-mat/0603212

  29. Coupled-cluster theory for systems of bosons in external traps: Phys. Rev. A 73, 043609 (2006). arXiv:cond-mat/0511430

  30. Fragmentation of Bose–Einstein condensates in multi-well three-dimensional traps: Physics Letters A, Volume 347, 88 (2005).

  31. Zoo of Quantum Phases and Excitations of Cold Bosonic Atoms in Optical Lattices: Physical Review Letters, Volume 95, 030405 (2005). arXiv:cond-mat/0412734

  32. Exact ground state of finite Bose-Einstein condensates on a ring: Phys. Rev. A 72, 033613 (2005). arXiv:cond-mat/0505323

  33. Properties of fragmented repulsive condensates: Phys. Rev. A 71, 063612 (2005). arXiv:cond-mat/0412222

  34. Interacting fermions and bosons with definite total momentum: Phys. Rev. B 71, 125113 (2005). arXiv:quant-ph/0406095

  35. Ground-state fragmentation of repulsive Bose-Einstein condensates in double-trap potentials: Phys. Rev. A 70, 053607 (2004). arXiv:cond-mat/0407516

  36. Self-consistent fragmented excited states of trapped condensates: Phys. Rev. A 70, 023610 (2004). arXiv:cond-mat/0310699

  37. Continuous configuration-interaction for condensates in a ring: Europhysics Letters, Volume 67 (1), 8 (2004). arXiv:cond-mat/0402626

  38. Best mean-field for condensates: Physics Letters A, Volume 318, 564 (2003). arXiv:cond-mat/0310697

    Inter- and intra-atomic processes accompanying core-ionization of clusters

    Charge transfer effects in molecule-negative ion complexes induced by core ionization: The Journal of Chemical Physics, Vol 119 (6), 3051 (2003).

  39. Strong interatomic effects accompanying core ionization of atomic clusters: Physical Review A, Volume 65, 023203 (2002).

  40. Core-ionized states and spectra of Be and Mg dimers: Physical Review A, Volume 65, 022501 (2002).

  41. Foreign and native coordination effects in core-level spectra of mixed Be-Mg clusters: The Journal of Chemical Physics, Volume 117(8), 3533 (2002).

  42. Strong charge-transfer effects in the Mg 2p-1 core-level spectrum of :MgB2Physical Review B, Volume 66, 165103 (2002). arXiv:cond-mat/0205433

  43. Interatomic response to core ionization of atomic clusters: Chemical Physics Letters, Volume 339, 263 (2001).

  44. The electron relaxation and UP spectra of metal coordination compounds: Journal of Electron Spectroscopy and Related Phenomena, Volume 96, 141 (1998).

  45. Photoelectron Spectroscopy of Transition Metal Complexes. Effect of Electron Relaxation On Spectrum Informativity: (in Russian) Journal of Structural Chemistry, T39, N6, 1113 (1998).

    Submitted, unpublished

  46. Interferences in the density of two initially independent Bose-Einstein condensates: arXiv:cond-mat/0701277



Contributions to Conferences

Bose-Einstein Condensation and Ultra-cold atoms

Inter- and intra-atomic processes accompanying core-ionization of clusters

-         Charge transfer processes in molecule-negative ion complexes induced by core ionization. 12TH INTERNATIONAL CONFERENCE ON X-RAY ABSORPTION FINE STRUCTURE (XAFS 12), June 22-27, Malmo, Sweden. 2003.

-         Core ionization of weakly bound atomic and molecular clusters. INTERNATIONAL WORKSHOP ON PHOTOIONIZATION (IWP2002), SPRING-8, August 22 - 26, Hyogo, Japan. 2002.

-         Satellite structures in core-level spectra of Be and Mg clusters. SIXTH EUROPEAN WORKSHOP ON QUANTUM SYSTEMS IN CHEMISTRY AND PHYSICS, April 19 - 24, Sofia, Bulgaria. 2001.

-         The electron relaxation and UP spectra of metal coordination compounds. 2-ND GERMAN-RUSSIAN SYMP. ELECTRON AND X-RAY SPECTROSCOPY, November  2-5, Berlin, Germany. 1997.