2015- ...: Associate professor 2009-2014: Ramón y Cajal Fellowship 2008-2009: Juan de la Cierva Fellowship 2006-2007: MEC Fellowship “Programa de estancias de jóvenes doctores extranjeros en España” 2004-2006: postdoc in BEC Center, Trento, Italy 2002-2005: PhD at Institute of Spectroscopy (Russian Academy of Sciences), supervisor (Yu. E. Lozovik) 2001-2004: PhD at Università degli studi di Trento, Italia (supervisors: Stefano Giorgini and Lev Pitaevskii) 2000-2001: Student at Università degli studi di Trento, Italy 1996-2002: Student at Moscow Institute of Physics and Technology, Russia

1998 G. E. Astrakharchik, A. I. Belousov, Yu. E. Lozovik, “Study of two-dimensional “dusty-plasma”clusters”, Optics and Laser Physics II session, LXI MIPT conference, Moscow, Russia 1999 G. E. Astrakharchik, S. E. Verzakov, Yu. E. Lozovik, “Studies of two-dimensional clusters of Abrikosov vortices”, Quantum Optics session, LXII MIPT conference, Moscow, Russia 2003 G. E. Astrakharchik, S. Giorgini, “Quantum Monte Carlo Study of low dimensional Bose systems”, Meeting on Cold Gases, Ringberg Schloss, Bavaria, Germany 2005 G. E. Astrakharchik, S. Giorgini, J. Boronat, J. Casulleras, “Momentum distribution and condensate fraction of a Fermi gas in the BCS-BEC crossover”, NQS2005 & ESF Workshop Camerino, Camerino, Italy 2007 G. E. Astrakharchik, J. Boronat, J. Casulleras, I. L. Kurbakov, Yu. E. Lozovik “Ground state properties of a homogeneous 2D system of Bosons with dipolar interactions”, Fourteenth International Conference on Recent Progress in Many-Body Theories, Barcelona 2009 G. E. Astrakharchik, J. Boronat, J. Casulleras, I.L. Kurbakov, and Yu.E. Lozovik, “Two-dimensional weakly interacting Bose gas: equation of state”, High-order actions and their applications in many body, few body, classical problems, Barcelona 2010 G. E. Astrakharchik, “Unusual one-dimensional quantum systems”, V Jornada de Recerca del Deparament de Física i Enginyeria Nuclear, Barcelona, Spain 2010 G. E. Astrakharchik, J. Boronat, I. Kurbakov, Yu. Lozovik, F. Mazzanti, “Low-dimensional weakly interacting Bose gases: non-universal equations of state”, Fifth International Workshop, "Theory of Quantum Gases and Quantum Coherence", Nice, France 2010 G. E. Astrakharchik, J. Boronat, O.N.Osychenko, Yu.E. Lozovik, Y. Lutsyshyn, “Monte Carlo study of quantum phase diagram of Rydberg atoms with repulsive 1/r6 interaction”, QFS 2010 Satellite Workshop - Cold Gases meet Many-Body Theory, Grenoble, France 2010 G. E. Astrakharchik and M. D. Girardeau, “Quantum Monte Carlo study of one-dimensional Coulomb gases at zero temperature”, XXVI Trobades Científiques de la Mediterrània, Maó, Menorca 2012 G. E. Astrakharchik. Lecture 1 “Lieb-Liniger, Tonks-Girardeau and super Tonks-Girardeau gases” Lecture 2 “Dipolar and Coulomb one-dimensional gases”, Summer School 2012 Low-Dimensional Quantum Many-Body Systems SFB TRR 49, Trier, Germany 2013 G. E. Astrakharchik, “Cold atoms @UPC”, Half-day meeting on ultracold atoms, Barcelona 2013 G. E. Astrakharchik and L. P. Pitaevskii, “Lieb's soliton-like excitations in harmonic traps”, The third international conference: Nonlinear waves theory and applications, Beijing, China 2013 G. E. Astrakharchik and I. Brouzos, “Trapped one-dimensional ideal Fermi gas with a single impurity”, International Workshop on Quantum Many-Body Systems in Low Dimensions, Wuhan, China 2013 G. E. Astrakharchik, “Diffusion Monte Carlo: symmetric trial wave function for a solid and pure estimators for one-body density matrix”, INT 13-2a Advances in Quantum Monte Carlo Techniques for Non-Relativistic Many-Body Systems, Institute for nuclear theory, University of Washington, Seattle

2011 – : Lecturer – General Physics 2011 – : Seminars teacher – General Physics 2008 – : Laboratory teacher – General Physics, Universitat Politècnica de Catalunya / Spain

Publications

[1] A.E. Golomedov, Yu. E. Lozovik, G.E. Astrakharchik and J. Boronat, Composite Boson Description of a Low-Density Gas of Excitons, J. Low. Temp. Phys.189, 300 (2017)

[2] Fabian Grusdt, Gregory E Astrakharchik and Eugene Demler, Bose polarons in ultracold atoms in one dimension: beyond the Fröhlich paradigm, New Journal of Physics19, 103035 (2017) [LINK]

[3] Giulia De Rosi, Grigori E. Astrakharchik, and Sandro Stringari, Thermodynamic behavior of a one-dimensional Bose gas at low temperature, Phys. Rev. A96, 013613 (2017) [LINK]

[4] Grigory E. Astrakharchik, Konstantin V. Krutitsky, Maciej Lewenstein, Ferran Mazzanti, Jordi Boronat, Optical lattices as a tool to study defect-induced superfluidity, Phys. Rev. A96, 033606 (2017) [LINK]

[5] Jacopo Nespolo, Grigori E. Astrakharchik, Alessio Recati, Andreev-Bashkin effect in superfluid cold gases mixture, New J. Phys.19, 125005 (2017) [LINK]

[10] Grigory E. Astrakharchik, Konstantin V. Krutitsky, Maciej Lewenstein, Ferran Mazzanti, One-dimensional Bose gas in optical lattices of arbitrary strength, Phys. Rev. A93, 021605(R) (2016) [LINK]

[11] N. Matveeva, G. E. Astrakharchik, One-dimensional multicomponent Fermi gas in a trap: quantum Monte Carlo study, New J. Phys.18, 065009 (2016) [LINK]

[12] Yaroslav Lutsyshyn, Grigori E. Astrakharchik, SAIL: A CUDA-based implementation of the simulated annealing for the inverse Laplace transform problem, arXiv:1609.07936 (2016)

[14] A. Iu. Gudyma, G. E. Astrakharchik, Mikhail B. Zvonarev, Reentrant behavior of the breathing-mode-oscillation frequency in a one-dimensional Bose gas, Phys. Rev. A92, 021601(R) (2015) [LINK]

[17] A. Macia, G. E. Astrakharchik, F. Mazzanti, S. Giorgini, J. Boronat, Single-particle versus pair superfluidity in a bilayer system of dipolar bosons, Phys. Rev. A90, 043623 (2014) [LINK]

[19] G. E. Astrakharchik, J. Boronat, E. Krotscheck, and T. Lichtenegger, Dynamic structure function of a cold Fermi gas at unitarity, J. Phys.: Conf. Ser.529, 012009 (2014) [LINK]

[20] M. A. García-March, B. Juliá-Díaz, G. E. Astrakharchik, J. Boronat, A. Polls, Distinguishability, degeneracy, and correlations in three harmonically trapped bosons in one dimension, Phys. Rev. A90, 063605 (2014) [LINK]

[21] M. A. Garcia-March, B. Julia-Diaz, G. E. Astrakharchik, Th. Busch, J. Boronat, A. Polls, Quantum correlations and spatial localization in one-dimensional ultracold bosonic mixtures, New J. Phys.16, 103004 (2014) [LINK]

[22] Y. Lutsyshyn, G. E. Astrakharchik, C. Cazorla, J. Boronat, Quantum phase transition with a simple variational ansatz, Phys. Rev. B90, 214512 (2014) [LINK]

[23] Z. D. Zhang, G. E. Astrakharchik, D. C. Aveline, S. Choi, H. Perrin, T. H. Bergeman, M. Olshanii , Breakdown of the scale invariance in a near-Tonks-Girardeau gas: some exact results and beyond, Phys. Rev. A89, 063616 (2014) [LINK]

[26] G. E. Astrakharchik, K.V. Krutitsky, and P. Navez, Phase diagram of quasi-two-dimensional bosons in laser speckle potential, Phys. Rev. A87, 061601(R) (2013) [LINK]

[27] M. A. Garcia-March, B. Julia-Diaz, G.E. Astrakharchik, Th. Busch, J.
Boronat, and A. Polls, Sharp crossover from composite fermionization to phase separation in mesoscopic mixtures of ultracold
bosons, Phys. Rev. A88, 063604 (2013) [LINK]

[28] G. E. Astrakharchik, S. Giorgini, and J. Boronat, Stability of resonantly interacting heavy-light Fermi mixtures, Phys. Rev. B86, 174518 (2012) [LINK]

[29] M. D. Girardeau and G. E. Astrakharchik, Super-Tonks-Girardeau State in an Attractive One-Dimensional Dipolar Gas, Phys. Rev. Lett.109, 235305 (2012) [LINK]

[30] O. N. Osychenko, G. E. Astrakharchik, F. Mazzanti, and J. Boronat, Zero-temperature phase diagram of Yukawa bosons, Phys. Rev. A85, 063604 (2012) [LINK]

[31] O. N. Osychenko, G. E. Astrakharchik, J. Boronat, Ewald method for polytropic potentials in arbitrary dimensionality, Molecular Physics
110, 227-247 (2012) [LINK]

[36] O. N. Osychenko, G. E. Astrakharchik, Y. Lutsyshyn, Yu. E. Lozovik,
and J. Boronat, Phase diagram of Rydberg atoms with repulsive van der Waals interaction, Phys. Rev. A84, 063621 (2011) [LINK]

[37] C. Cazorla, G. E. Astrakharchik, J. Casulleras, J. Boronat, Ground-state properties and superfluidity of two- and quasi-two-dimensional solid 4He, J. Phys.: Condens. Matter22, 165402 (2010) [LINK]

[38] G. E. Astrakharchik, J. Boronat, I. L. Kurbakov, Yu. E. Lozovik, and F. Mazzanti, Low-dimensional weakly interacting Bose gases: Nonuniversal equations of state, Phys. Rev. A81, 013612 (2010) [LINK]

[39] I. L. Kurbakov, Yu. E. Lozovik, G. E. Astrakharchik, and J. Boronat, Quasiequilibrium supersolid phase of a two-dimensional dipolar crystal, Phys. Rev. B82, 014508 (2010) [LINK]

[40] M. D. Girardeau and G. E. Astrakharchik, Wave functions of the super-Tonks-Girardeau gas and the trapped one-dimensional hard-sphere Bose gas, Phys. Rev. A81, 061601(R) (2010) [LINK]

[41] M. D. Girardeau and G.E. Astrakharchik, Ground state of a mixture of two bosonic Calogero-Sutherland gases with strong odd-wave interspecies attraction, Phys. Rev. A81, 043601 (2010) [LINK]

[42] Y. Lutsyshyn, C. Cazorla, G. E. Astrakharchik, and J. Boronat, Properties of vacancy formation in hcp 4He crystals at zero temperature and fixed pressure, Phys. Rev. B82, 180506(R) (2010) [LINK]

[43] C. Cazorla, G. E. Astrakharchik, J. Casulleras, and J.
Boronat, Bose-Einstein Quantum Statistics and the Ground State of Solid 4He, New J. Phys.11, 013047 (2009) [LINK]

[44] G. E. Astrakharchik, G. De Chiara, Giovanna Morigi, and J. Boronat, Thermal and quantum fluctuations in low dimensional dipolar chains, J. Phys. B: At. Mol. Opt. Phys.42, 154026 (2009) [LINK]

[45] G. E. Astrakharchik, Giovanna Morigi, Gabriele De Chiara, and J.
Boronat, Ground state of low dimensional dipolar gases: linear, zigzag
and multiple chains, Virtual Journal of Nanoscale Science &
Technology19, Issue 2 Jan (2009)

[46] G. E. Astrakharchik, J. Boronat, J. Casulleras, I. L. Kurbakov, and
Yu. E. Lozovik, Equation of state of a weakly interacting
two-dimensional Bose gas studied at zero temperature by means of quantum Monte Carlo methods, Phys. Rev. A79, 051602(R) (2009) [LINK]

[47] D. Petrov, G.E. Astrakharchik, D. Papoular, C. Salomon, and G.V.
Shlyapnikov, Crystalline phase of strongly interacting Fermi mixtures, Recent Progress in Many Body Theories, Proceedings of the Fourteenth International Conference, edited J. Boronat, G. E. Astrakharchik and F. Mazzanti, (World Scientific, Singapore 94 (2008) [LINK]

[48] F. Mazzanti, G. E. Astrakharchik, J. Boronat, and J. Casulleras, Off-diagonal ground-state properties of a one-dimensional gas of Fermi hard rods, Phys. Rev. A77, 043632 (2008) [LINK]

[49] F. Mazzanti, G.E. Astrakharchik, J.Boronat, and J.
Casulleras, Ground-state properties of a one-dimensional system of Hard Rods, Phys. Rev. Lett.100, 020401 (2008) [LINK]

[50] F. Mazzanti, G.E. Astrakharchik, J.Boronat, and J. Casulleras, Static properties of a system of Bose hard rods in one-dimension, Proceedings of the Fourteenth International Conference, edited J. Boronat, G. E. Astrakharchik and F. Mazzanti (World Scientific, Singapore) 116 (2008) [LINK]

[51] G. E. Astrakharchik and Yu. E. Lozovik, Super-Tonks-Girardeau regime in trapped one-dimensional dipolar gases , Phys. Rev. A77, 013404 (2008) [LINK]

[52] G. E. Astrakharchik, Giovanna Morigi, Gabriele De Chiara, and J.
Boronat, Ground state of low-dimensional dipolar gases: Linear and zigzag chains, Phys. Rev. A78, 063622 (2008) [LINK]

[53] G. E. Astrakharchik, J. Boronat, J. Casulleras, I. L. Kurbakov, and
Yu. E. Lozovik, Ground state properties of a homogeneous 2D system of Bosons with dipolar interactions, Recent Progress in Many Body Theories, Proceedings of the Fourteenth International Conference, edited J. Boronat, G. E. Astrakharchik and F. Mazzanti, (World Scientific, Singapore, 2008 245 (2008) [LINK]

[54] Yu. E. Lozovik, I. L. Kurbakov, G. E. Astrakharchik, M. Willander, Bose condensation of two-dimensional dipolar excitons: Simulation by the quantum Monte Carlo method, JETP106, 296 (2008) [LINK]

[56] D. S. Petrov, G. E. Astrakharchik, C. Salomon, G. V. Shlyapnikov, Crystalline phase of strongly interacting Fermi mixtures, Phys. Rev. Lett.99, 130407 (2007) [LINK]

[57] G.E. Astrakharchik, J. Boronat, I.L. Kurbakov, and Yu.E. Lozovik, Quantum phase transition in a two-dimensional system of dipoles, Phys. Rev. Lett.98, 060405 (2007) [LINK]

[58] G.E. Astrakharchik, J. Boronat, J. Casulleras, I.L. Kurbakov, and
Yu.E. Lozovik, Weakly interacting two-dimensional system of dipoles: limitations of the mean-field theory, Phys. Rev. A75, 063630 (2007) [LINK]

[59] Yu. E. Lozovik, I.L. Kurbakov, G.E. Astrakharchik, J. Boronat, and
Magnus Willander, Effects of strong correlations for 2D Bose-Einstein condensed dipolar excitons, Solid State Communications 144, 399 (2007) [LINK]

[61] G. E. Astrakharchik, D. M. Gangardt, Yu.E Lozovik and I.A. Sorokin, Off-diagonal correlations of the Calogero-Sutherland model, Phys. Rev. E 7474, 021105 (2006) [LINK]

[62] S. Giorgini, G. E. Astrakharchik, J. Boronat, and J. Casulleras, Quantum Monte Carlo study of a Fermi gas in the BEC-BCS crossover, “Recent Progress in Many-Body Theories MB13”, ed. S. Hernández and H. Cataldo (World Scientific, Singapore) 228-237 (2006) [LINK]

[63] S. Giorgini, G. E. Astrakharchik, J. Boronat, and J. Casulleras, Quantum Monte Carlo study of a Fermi gas in the BEC-BCS crossover, Int. J. Mod. Phys. B20, 5189 (2006) [LINK]

[64] A. S. Arkhipov, G. E. Astrakharchik, A. V. Belikov, and Yu. E. Lozovik , Ground-state properties of a one-dimensional system of dipoles, Pis’ma Zh. Eksp. Teor. Fiz.82, 41 (2005) [LINK]

[66] G. E. Astrakharchik, J. Boronat, J. Casulleras, and S.
Giorgini, Beyond the Tonks-Girardeau gas: Strongly correlated regime in quasi-one-dimensional Bose gases, Phys. Rev. Lett.95, 190407 (2005) [LINK]

[67] G. E. Astrakharchik, J. Boronat, J. Casulleras, and S. Giorgini, Momentum distribution and condensate fraction of a Fermi gas in the BCS-BEC crossover, Phys. Rev. Lett.95, 230405 (2005) [LINK]

[68] G. E. Astrakharchik, R. Combescot, X. Leyronas and S. Stringari, Equation of state and collective frequencies of a trapped Fermi gas along the BEC-unitarity crossover, Phys. Rev. Lett.95, 030404 (2005) [LINK]

[69] G. E. Astrakharchik, D. Blume, S. Giorgini, and B. E. Granger, Quasi-One-Dimensional Bose Gases with a Large Scattering Length, Phys. Rev. Lett.92, 030402 (2004) [LINK]

[70] G. E. Astrakharchik, D. Blume, S. Giorgini, B. E. Granger, Quantum Monte Carlo study of quasi-one-dimensional Bose gases, J. Phys. B: At. Mol. Opt. Phys. 37, 5205 (2004) [LINK]

[71] G. E. Astrakharchik, D. Blume, S. Giorgini, L. P. Pitaevskii, Interacting fermions in highly elongated harmonic traps, Phys. Rev. Lett.93, 050402 (2004) [LINK]

[72] G. E. Astrakharchik, J. Boronat, J. Casulleras, and S. Giorgini, Equation of State of a Fermi Gas in the BEC-BCS Crossover: A Quantum Monte Carlo Study, Phys. Rev. Lett.93, 200404 (2004) [LINK]

[74] G. E. Astrakharchik and S. Giorgini, Correlation functions and momentum distribution of one-dimensional Bose systems, Phys. Rev. A 68, 031602(R) (2003) [LINK]

[75] G. E. Astrakharchik and S. Giorgini, Quantum Monte Carlo study of the three- to one-dimensional crossover for a trapped Bose gas, Phys. Rev. A 66, 053614 (2002) [LINK]

[76] G. E. Astrakharchik, J.Boronat, J. Casulleras and S. Giorgini, Superfluidity and Bose-Einstein condensation in a Bose gas with disorder, Phys. Rev. A66, 023603 (2002) [LINK]

[78] G. E. Astrakharchik, A. I. Belousov, Yu. E. Lozovik, Two-dimensional mesoscopic dusty plasma clusters: Structure and phase transitions, JETP89, 696 (1999) [LINK]