# Welcome to the web site of D.E. Galli

- Research interest: Monte Carlo, Molecular Dynamics and quantum Monte Carlo simulations of many-particle systems, theory of superfluids and quantum solids, theoretical methods for quantum many-body systems, inverse problems, genetic/memetic algorithms, phase retrieval algorithms

## Selected publications:

- “Statistical and computational intelligence approach to analytic continuation in Quantum Monte Carlo.”, G. Bertaina, D.E. Galli, E. Vitali, Adv. Phys. X 2, 302 (2017).
- “Facing the phase problem in Coherent Diffractive Imaging via Memetic Algorithms”, A. Colombo, D.E. Galli, L. De Caro, F. Scattarella, and E. Carlino, Scientific Reports 7, 42236 (2017).
- “Dynamical structure factor of one-dimensional hard rods”, M. Motta, E. Vitali, M. Rossi, D. E. Galli, and G. Bertaina, Phys.Rev. A 94, 043627 (2016).
- “One-dimensional liquid 4He: dynamical properties beyond Luttinger-liquid theory”, G. Bertaina, M. Motta, M. Rossi, E. Vitali, D.E. Galli, Phys. Rev. Lett. 116, 135302 (2016).
- "Observation of crystallization slowdown in supercooled parahydrogen and orthodeuterium quantum liquid mixtures", M. Kühnel, J.M. Fernández, F. Tramonto, G. Tejeda, E. Moreno, A. Kalinin, M. Nava, D.E. Galli, S. Montero and R.E. Grisenti, Phys. Rev. B 89, 180201(R) (2014).
- “Dynamic structure factor for 3He in two dimensions”, M. Nava,
D.E. Galli, S. Moroni, and E. Vitali, Phys. Rev. B 87, 144506
(2013).

- “Adsorption of He isotopes on fluorographene and graphane:
Fluid and superfluid phases from quantum Monte Carlo
calculations”, M. Nava, D.E. Galli, M.W. Cole, L. Reatto, Phys.
Rev. B 86, 174509 (2012).

- “Equation of state of two-dimensional 3He at zero temperature”
M. Nava, A. Motta, D.E. Galli, E. Vitali, and S. Moroni, Phys.
Rev. B 85, 184401 (2012).

- “Microscopic characterization of overpressurized superfluid
4He”, M. Rossi, E. Vitali, L. Reatto, D.E. Galli, Phys. Rev. B
85, 014525 (2012).

- “Path Integral Monte Carlo study of 4He clusters doped with
alkali and alkali-earth ions”, D.E. Galli, D.M. Ceperley, and L.
Reatto, J. Phys. Chem. A 115, 7300 (2011).

- “Ab initio low-energy dynamics of superfluid and solid 4He”,
E.Vitali, M. Rossi, L. Reatto, and D.E. Galli, Phys. Rev. B 82,
174510 (2010).

- “Exact ground state Monte Carlo method for Bosons without
importance sampling”, M. Rossi, M. Nava, L. Reatto, and D.E.
Galli, J. Chem. Phys. 131, 154108 (2009).

- “Solid 4He and the Supersolid Phase: from Theoretical
Speculation to the Discovery of a New State of Matter? A Review
of the Past and Present Status of Research”, D.E. Galli, and L.
Reatto, J. Phys. Soc. Jap. 77, 111010 (2008).

- “Bose-Einstein Condensation of Incommensurate Solid 4He”, D.E.
Galli, and L. Reatto, Phys. Rev. Lett. 96, 165301 (2006).

- “Layer by layer solidification of 4He in narrow porous media”,
M. Rossi, D.E. Galli and L. Reatto, Phys. Rev. B72, 064516
(2005).

- “Alkali and alkali–earth ions in 4He systems”, M. Rossi, M.
Verona, D.E. Galli and L. Reatto, Phys. Rev. B69, 212510 (2004).

- “Vacancy excitation spectrum in solid 4He and longitudinal
phonons”, D.E. Galli and L. Reatto, Phys. Rev. Lett. 90,
175301/1 (2003).

- “Recent progress in simulation of the ground state of many
Boson systems”, D.E. Galli and L. Reatto, Mol. Phys. 101, 1697
(2003).

- “Vacancies in solid 4He and Bose Einstein Condensation”, D.E.
Galli and L.Reatto, J. Low Temp. Phys., 124, (2001).

- “Fluctuation effects at the free surface of superfluid 4He”,
D.E. Galli and L. Reatto, J. of Phys.: Condensed Matter 12, 6009
(2000).

- “Rotons and Roton Wave Packets in Superfluid 4He”, D.E. Galli, E. Cecchetti and L. Reatto, Phys. Rev. Lett. 77, 5401 (1996).

# Teaching:

- Advanced Statistical Physics (Laurea Magistrale in Fisica)

- Physics (Medicina Veterinaria)
- Computational Physics (Scuola di Dottorato)
- Numerical Treatment of Experimental Data Laboratory (Laurea Triennale in Fisica)

... and the Parallel Computing Laboratory's logos

Dynamic structure factor in 1D

^{4}He at different densities [G. Bertaina, M. Motta, M. Rossi, E. Vitali, D.E. Galli, Phys. Rev. Lett. 116, 135302 (2016)]

Local density of the 2/7 phase of 4He on Fluorographene (a) and on Graphane (b) compared

with the geometry of the substrate. Small red balls are centered on the position of fluorine atoms and the small green ones on the carbon atoms [M. Nava, D.E. Galli, M.W. Cole, L. Reatto, Phys. Rev. B 86, 174509 (2012)]

Angular correlations among 4He atoms inside spherical shells around a Na+ ion in a 4He droplet [D.E. Galli, D.M. Ceperley, and L. Reatto, J. Phys. Chem. A 115, 7300 (2011)]