# Dr. Jan Engelbrecht

## associate professor of physics

Phone: 617-552-0642

Higgins Hall 330C

E-mail: jan.engelbrecht@bc.edu

### Education

Ph.D., University of Illinois, Urbana

### Areas of Research

Theory of strongly correlated electron systems, including pairing correlations in high-temperature superconductors, Fermi Liquid vs. non-Fermi Liquid metals, local Fermi liquids and the metal-insulator transition.

### Selected Publications

**J. R. Engelbrecht,**and R. Mirollo, "Dynamical Phase Transitions in Periodically Driven Model Neurons,"*Phys. Rev. E***79**, 021904 (2009).

- P. Ván, A. Berezovski,
**J. Engelbrecht**, "Internal Variables and Dynamic Degrees of Freedom,"*J. Non-Equilib. Thermodyn.***33**(3), 235 (2008).

**J.R. Engelbrecht**, R. Mirollo, "Dynamical Phase Transitions In Driven Integrate-And-Fire Neurons," arXiv:0710.0391v1 (2007).**J. R. Engelbrecht**, H. Zhao, "t-J Model for a Bilayer: Coexisting Superconductivity and Planar-Flux Phases,"*Phys. Rev. B***71**, 054508 (2005).- K. Kempa, Y. Zhou,
**J. R. Engelbrecht**, and P. Bakshi, "Electron-Electron Scattering in Strong Magnetic Fields in Quantum Well Systems,"*Phys. Rev. B***68**, 085302 (2003). - K.B. Blagoev,
**J.R. Engelbrecht**, and K.S. Bedell "S-wave Superconductivity in Weak Ferromagnetic Metals,"*Philos. Mag. Lett.*(1998). **J.R. Engelbrecht**, A. Nazarenko, M. Randeria, and E. Dagotto, "Pseudogap Above Tc in a Model with d_{x2-y2} pairing,"*Phys. Rev. B***57**(21) (1998).**J.R. Engelbrecht,**"The Spin Susceptibility Pseudogap due to Gaussian Pairing in 3D,"*Philos. Mag. B***77**, 1617 (1998).**J.R. Engelbrecht**, M. Randeria, C.A.R. Sa de Melo, "BCS to Bose Crossover: Broken-Symmetry State,"*Phys. Rev. B***55**(22), 15153 (1997).**J.R. Engelbrecht**, K.S. Bedell, "Robustness of a Local Fermi-Liquid Against Ferromagnetism and Phase Separation,"*Phys. Rev. Lett.***74**(21), 4265 (1995).- M. Randeria,
**J.R. Engelbrecht**, and N. Trivedi, "Search for Deviations from Fermi Liquid Behaviour in 2D Repulsive and Attractive Hubbard Models" in*The Physics and Mathematical Physics of the Hubbard Model*, ed. D. Baeriswyl*et al.*(Plenum, 1994). **J.R. Engelbrecht**, M. Randeria, C.A.R. Sa de Melo, "Short Coherence Length Superconductors: intermediate Regime Between BCS and Bosons in Strongly Correlated Electronic Materials," The Los Alamos Symposium, ed. K. Bedell*et al.*(Addison Wesley, 1994).- M. Randeria, C.A.R. Sa de Melo,
**J.R. Engelbrecht,**"Crossover from BCS to Bose Superconductivity – a Functional Integral Approach,"*Physica B***194**(2), 1409 (1994). - C.A.R. Sa de Melo, M. Randeria,
**J.R. Engelbrecht,**"Crossover from BCS to Bose Superconductivity– Transition Temparetaure and Time-Dependent Ginzburg-Landau Theory,"*Phys. Rev. Lett.***71**(19), 3202 (1993). **J.R. Engelbrecht**, M. Randeria, "Low-Density Repulsive Fermi Gas in 2 Dimensions – Bound-Pair Excitations and Fermi-Liquid Behavior,"*Phys. Rev.*B**45**(21), 12419 (1992).**J.R. Engelbrecht**, M. Randeria, L. Zhang, "Landau*f*Function for the Dilute Fermi Gas in 2 Dimensions,"*Phys. Rev. B***45**(17), 10135 (1992).**J.R. Engelbrecht**, M. Randeria, "Is There a Breakdown of Fermi-Liquid Behavior in the 2-Dimensional Fermi Gas,"*Phys. Rev. Lett.***66**(24), 3225 (1991).- C.A. Engelbrecht,
**J.R. Engelbrecht,**"Fermi Gas Descriptions of Nuclear-Level Densities," Ann. Phys.-New York**207**(1), 1 (1991). **J.R. Engelbrecht**, M. Randeria, "New Collective Mode and Corrections to Fermi-Liquid Theory in 2 Dimensions,"*Phys. Rev. Lett.***65**(8), 1032 (1990).**J.R. Engelbrecht**, F.M. Wahl, "Polyhedral Object Recognition Using Hough-Space Features,"*Pattern Recogn.***21**(2), 155 (1988).**J.R. Engelbrecht**, P. Kritzinger , H. Rudin, "Predicting Protocol Performance from a Meta-Implementation," Proc. 5th Intl. Workshop on Protocol Specification, Testing and Verification, Toulouse-Moissac, North Holland (1985).**J.R. Engelbrecht**, C.A. Engelbrecht, "'Toestandvergelykings by Uiterste Toestande' [Equations of State under Extreme Conditions]," Proc. 22nd Annual Seminar on Theoretical Physics, Durban, ed. H.B. Geyer, Organisation of Theoretical Physics (South Africa), p. 223 (1987).