Research Interests
- Strongly correlated electron systems
- Topological order
- Quantum magnetism
- Quantum phase transitions
- Confined atoms in optical lattices
- Exact diagonalization
- Quantum Monte Carlo Techniques
- Computational physics
Dissertation
Phase Transitions in Strongly Interacting Quantum Systems. pdf
Journal Publications & Manuscripts in Preparation
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Qingyou Meng, Christopher N. Varney, Hans Fangohr, and Egor Babaev,
Phase diagrams of vortex matter with multi-scale inter-vortex interactions in layered superconductors.
J. Physics.: Condens. Matter 29, 035602 (2017); link pdf arXiv -
Qingyou Meng, Christopher N. Varney, Hans Fangohr, and Egor Babaev,
Honeycomb, square, and kagomé vortex lattices in superconducting systems with multi-scale inter-vortex interactions.
Phys. Rev. B 90, 020509(R) (2014); link pdf arXiv -
Christopher N. Varney, Karl A. H. Sellin. Qing-Ze Wang, Hans Fangohr, and
Egor Babaev,
Hierarchical structure formation in layered superconducting systems with multi-scale inter-vortex interactions.
J. Phys.: Condens. Matter 25, 415702 (2013); link pdf arXiv -
S. A. Kulagin, N. Prokof'ev, O. A. Starykh, B. Svistunov, and
C. N. Varney,
Bold Diagrammatic Monte Carlo Applied to Fermionized Frustrated Spins.
Phys. Rev. Lett. 110, 070601 (2013); link pdf arXiv -
S. A. Kulagin, N. Prokof'ev, O. Starykh, B. Svistunov, and
C. N. Varney,
Bold Diagrammatic Monte Carlo technique for frustrated spin systems.
Phys. Rev. B. 87, 024407 (2013); link pdf arXiv
Editors' Suggestion. -
Christopher N. Varney, Kai Sun, Victor Galitski, and
Marcos Rigol,
Quantum Phases of Hard-Core Bosons in a Frustrated Honeycomb Lattice.
New Journal of Physics 14, 115028 (2012) link pdf arXiv -
Christopher N. Varney, Kai Sun, Marcos Rigol, and Victor
Galitski,
Topological transitions for interacting finite systems
Phys. Rev. B 84, 241105(R) (2011) link pdf arXiv Kindle -
Christopher N. Varney, Kai Sun, Victor Galitski, and
Marcos Rigol
Kaleidoscope of Exotic Quantum Phases in a Frustrated XY Model.
Phys. Rev. Lett. 107, 077201 (2011). link pdf arXiv
Viewpoint: Physics 4, 62 (2011). Editor's Suggestion. -
Simone Chiesa, Christopher N. Varney, Marcos Rigol, and Richard
T. Scalettar
Magnetism and pairing in two-dimensional trapped fermions
Phys. Rev. Lett. 106, 035301 (2011). link pdf arXiv
Selected for Virtual Journal of Atomic Quantum Fluids 3:5 (May, 2011) link -
Christopher N. Varney, Kai Sun, Marcos Rigol, and Victor
Galitski
Interaction effects and quantum phase transitions in topological insulators
Phys. Rev. B. 82, 115125 (2010). link pdf arXiv
Selected for Virtual Journal of Atomic Quantum Fluids 2:10 (October, 2010) link -
Christopher N. Varney, Simone Chiesa, Che-Rung Lee,
Zhaojun Bai, and Richard T. Scalettar
Quantum Monte Carlo Study of the two-dimensional fermion Hubbard Model
Phys. Rev. B 80, 075116 (2009). link pdf arXiv
Selected for Virtual Journal of Atomic Quantum Fluids 1:3 (September, 2009) link -
Christopher N. Varney, Valery G. Rousseau, and Richard
T. Scalettar
Quantum Monte Carlo study of the visibility of one-dimensional Bose-Fermi mixtures
Phys. Rev. A 77, 041608(R) (2008). link pdf arXiv -
Helen A. Craig, Christopher N. Varney, Richard T. Scalettar, and
Warren E. Pickett
Static versus dynamic fluctuations in the one-dimensional extended Hubbard model
Phys. Rev. B 76, 125103 (2007). link pdf arXiv -
Christopher N. Varney, Gus L. W. Hart, and Chris Wolverton
A Coherency Strain Model for Hexagonal-Close-Packed Alloys
TMS Lett. 1[2], 35 (2004). link pdf
Conference Publications
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C. Prayaga, A. Wade, C. N. Varney, L. Prayaga, and A. Whiteside
A Robotic Interactive Learning Environment to Teach Physics
EdMedia 2014: World Conference on Educational Media and Technology, Tampere, Finland, June 23-27 (2014) [Accepted]
Technical Reports
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C.-R. Lee, S. Chiesa, C. N. Varney, E. Khatami, Z. Bai,
E. D'Azevedo, M. Jarrell, Th. Maier,
S. Savrasov, R. T. Scalettar, and K. Tomko
QUEST: QUantum Electron Simulation Toolbox
SciDAC 2010 Conference, Chattanooga, Tennessee, July 11-15 (2010). Poster Preprint.
Invited Talks
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28 Mar. 2013, University of West Florida, Pensacola, FL
7 Mar. 2013, Youngstown State University, Youngstown, OH
4 Feb. 2013, Illinois State University, Normal, IL
Frontiers in Quantum Mechanics -
21 Feb. 2013, Univeristy of Illinois, Urbana-Champaign, IL
23 Jan. 2013, Lawrence Livermore National Lab, Livermore, CA
Topological Phase Transitions -
30 November 2012, Southern Connecticut State University, New Haven, CT
Frontiers in Quantum Mechanics: Topological Insulators and Quantum Spin Liquids -
17 October 2011, KTH Royal Institute of Technology, Stockholm,
Sweden
Kaleidoscope of Exotic Quantum Phases in a Frustrated XY Model -
18 October 2011, KTH Royal Institute of Technology, Stockholm,
Sweden
13 October 2011, Universität Würzburg, Würzburg, Germany
11 October 2011, RWTH Aachen University, Aachen, Germany
Topological Phase Transitions for Finite Interacting Systems -
11 March 2011, George Mason University, Fairfax, VA
Quantum Phase Transitions in Topological Insulators and Quantum Spin Liquids -
9 November 2010, University of Southern California, Los Angeles, CA
22 October 2010, University of California, Santa Cruz, CA
Interaction Effects and Quantum Phase Transitions in Topological Insulators -
27 May 2010, University of California, Davis, CA
Interaction Effects in Topological Insulators -
June 2008, Universidade Federal do Rio de Janeiro, Rio de
Janeiro, Brazil
Bose-Fermi Mixtures in Optical Lattices and a Brief Overview of Graphene Nanoribbons
Contributed Talks
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2012 APS March Meeting, Boston, MA
Bose metal phase in a simple honeycomb lattice model
Abstract pdf -
2011 APS March Meeting, Dallas, TX
Exotic quantum phases in a frustrated quantum spin model on a honeycomb lattice
Abstract pdf -
2010 APS March Meeting, Portland, OR
Identifying Topological Phases in Real Space
Abstract pdf -
2009 APS March Meeting, Pittsburgh, PA
High Precision QMC Study of the 2D Hubbard Model
Abstract pdf -
2008 APS March Meeting, New Orleans, LA
Quantum Monte Carlo study of the visibility of one-dimensional Bose-Fermi mixtures
Abstract pdf -
2008 APS March Meeting, New Orleans, LA
The FFLO Phase in Imbalanced Fermion Systems in 1D
pdf -
2007 APS March Meeting, Denver, CO
Analysis of the Dynamical Cluster Approximation for the Triangular Lattice Hubbard Model
Abstract pdf -
2006 APS March Meeting, Baltimore MD
A Quantum Monte Carlo Study of the Triangular Hubbard Model
Abstract pdf -
2004 APS March Meeting, Montreal, Quebec
Strain Modeling for the Mg-CA and Mg-Y Binary Systems
Abstract