ChenchaoZhao

The PDF version

Education

Bachelor of Physics

Department of Physics, Beijing Normal University, expected July 2013

Score Statistics

  • Major average


    Theory 89 + Lab 87 + Math 93 = Total 89, with 5 courses above 95 and 2 full scores

  • TOEFL 111, Speaking section 28

  • GRE 1320 + 3.5

Familiar with

  • Cold atoms

  • Topological insulator/superconductor

  • Classical field theory and the general theory of relativity

  • Quantum many-body physics, functional formalism of


  • Basic notions of
    • Soft condensed matter
    • String theory and AdS/CMT
    • Topological orders

Mathematics

  • Mathematical analysis, differential geometry

  • Advanced linear algebra, operator theory, functional calculus, group theory and etc.

Computer skills

  • Languages/softwares: Fortran, Octave (Matlab), Gnuplot, Maxima, Inkscape, LATEX

  • Operating system: Linux (Debian)

  • Numerical recipe: Exact-diagonalization

Research Experience

Condensed Matter

Aug-Nov, 2012 Novel London moments in rapidly rotating topological insulators

  • I devised a universal and quantum mechanical formalism of non-inertial effects in rotating crystals, consistent with London moment in superconductors and Barnett's effects.

  • I showed that rotation-induced pseudo-gauge field is affiliated to charge U(1) gauge rather than being an independent "artificial gauge field."

  • In contrast to trivial crystals, I predicted theoretically two novel types of moments in rotating topological insulators (TI) in the presence of a auxiliary magnetic field.

  • When the auxiliary field is applied parallel or radially perpendicular to the rotation axis, one will observe a quadratic magnetic moment and an electric moment respectively.

  • I suggested a "solenoid" structure and lock-in measurement to improve detectability and precision.

  • I also pointed out that the experiments will shed light on interactions inside a TI and clarify some controversies over rotating crystals.

Cold Atoms

Aug, 2012 Effects of Rashba-Dresselhaus competition in 2D two-component spinor BEC

  • I combined the two spin-orbit coupling strengths into a single complex parameter with argument α characterizing the mixing.

  • In the free particle model, I demonstrated explicitly how the ground state degeneracy evolves as a function of α;

  • Effects of Zeeman term and parity breaking term on dispersion relation were also studied.

Academic Activities

Attended workshops and lectures

  • Tsinghua, April, 2012 Serial lectures Quantum Many-Body Correlation Functions and Applications to BEC by Professor Alexander Fetter and volunteered to write the lecture notes.

  • Tsinghua, April, 2012 Serial lectures on Superfluidity by Professor Gordon Baym.

  • CAS, May, 2012 The Interplay between Magnetism, Superconductivity and Spin-Orbit Coupling in Topological Insulators by Professor Taylor Hughes.

  • KITPC, Summer, 2012 Critical behavior of lattice models in atomic and molecular, condensed matter and particle, organized by Professor Xiao-Gang Wen, et al.

My talks and presentations

  • KITPC, Summer, 2012 Hosted an informal discussion session about topics in topological insulators with interactions, under kind permission and instructions of Professor Xiao-Gang Wen

  • Sophomore A blackboard talk on dual gauge theory and dual superconductivity at Professor Supeng Kou's group meeting.

  • Sophomore Delivered a concise presentation on the generalization of the second law to the realm of non-equilibrium thermodynamics during the course Introduction to Biological Physics

Miscellaneous

  • Freshman Took graduate course Differential Geometry and General Relativity.

  • Sophomore Attended the graduate condensed matter theory course taught by Professor Su-Peng Kou and joined his group

  • Sophomore Read and finished problems (chapter 1-7) of Atomic Physics by Christopher J Foot, in exchange for the contents of freshman Quantum Physics (by Professor Mei Zhang )