Welcome to the homepage of Wing-Ho Ko

My Research    My Physics Notes    Related Links

Hello! This is the personal webpage of Wing-Ho Ko, currently a graduate student in Physics at the Massachusetts Institute of Technology (MIT), working with professor Patrick A. Lee, in the field of condensed matter theory. My current research focus is on superconductor and quantum magnets.

This page is a losse and partial collection of online and electronic materials related to me.

My Research Papers, Presentations, Posters, etc.

• Extended Gutzwiller approximation for inhomogeneous systems [PRB, arXiv]
  A paper on introducing spin-and-site-dependent fugacity factors to generalize the Gutzwiller approximation.
• Spontaneous spin ordering of Dirac spin liquid in a magnetic field [PRL, arXiv]
  A paper discussing the effect of external magnetic field on the 2D spin-1/2 kagome lattice (realized in, e.g., Herbertsmithite). Built upon a previous paper that suggests a Dirac-U(1) spin-liquid state for such system.
• Doped Kagome System as Exotic Superconductor with Fractional Quasiparticles [arXiv]
  A paper discussing the effect of doping the 2D spin-1/2 kagome lattice with holes. Again based on the Dirac-U(1) spin-liquid state.
  • A poster on the same topic [pdf] (Last Updated 3 July 2008)

Some of My Physics Notes

• Boulder Summer School notes [link]
  Notes I took when attending the Boulder Summer School 2008, which is titled "strongly correlated materials." To my honor, the organizers found these notes accurate and high-quality enough to be posted alongside with the notes/slides of the original speakers.
• MIT physics general exams notes
  • Part I [pdf] (scanned 1 Dec 2007)
  • Part II [pdf (math), pdf (mechanics), pdf (E & M), pdf (quantum), pdf (thermal)] (scanned 1 Dec 2007)
  • Part III (condensed matter theory) [pdf] (scanned 29 Nov 2007)
  Cheat-sheet-like notes I prepared for myself when I studied for the physics general exams (a.k.a. qualifiers) at MIT. May be useful for revisions on the respective topics/subjects beyond the narrow purpose of the general exams (e.g., I used my part III notes as quick reminders for myself when T.A.-ing for graduate level solid state classes).
• MIT graduate-level statistical mechanics cheat-sheets
  • Stat Mech I midterm [pdf] (scanned 7 Nov 2005)
  • Stat Mech I final [pdf] (scanned 22 Dec 2005)
  • Stat Mech II final [pdf] (scanned 24 May 2006)
  Cheat-sheet-like notes I prepared for myself when I studied for the graduate-level statistical mechanics courses at MIT (lectured by Prof. Mehran Kardar).
• Complex analysis review notes [pdf] (last updated 13 Nov 2007)
  Notes originally written for the graduate-level quantum mechanics course at MIT when I T.A. the class in Fall 2006 (lectured by Prof. Robert Jaffe). The contents are later texed up (for whatever reasons...).
• 2nd quantization review notes [pdf] (last updated 23 Nov 2008)
  Notes originally written for the graduate-level solid state theory course at MIT when I T.A. the class in Fall 2008 (lectured by Prof. Patrick Lee). This version is slightly updated from the one I sent to the class.
• Errata
  Errata of my notes that I've so far spotted out but uncorrected in the originals
  (I'm not actively hunting for errors. If you spot one, please let me know so that I can add it to the list. Also let me know if you want to be mentioned for your discovery).

Related Links

• MIT Condensed Matter Theory Group
  Homepage of the MIT condensed matter theory group, which I am part of.
• MIT Hong Kong Student Society
  Homepage of the MIT Hong Kong Student Society, which I am currently an officer of.
• MIT HSSP Summer Course: Exploring Symmetry
  A summer course I taught in 2009 under the High School Summer Program (HSSP) of the MIT Education Studies Program (ESP). The page is also "mirrored" (with stylistic modifications) here.
• University of Illinois at Urbana-Champaign
  Homepage of the University of Illinois at Urbana-Champaign (UIUC), where I had by undergraduate education.
• UIUC Physics Van
  The Physics Van is an outreach program to do science (physics) show in elementary schools. I was an active member there for 3.5 years (2002 – 2005).
  
  • Check out how I looked like in 2003 in a recorded webstream show....
• UIUC Physics Society
  Physics society at UIUC, which I was an officer of for two years (2003 – 2005).
• Diocesan Boys' School, HK
  My middle/high school.
• Googling myself....
  Supposedly everyone should google oneself occasionally to check for plagiarism and identity theft (no, I'm not narcissistic...).

My Research    My Physics Notes    Related Links

For questions regarding contents of this page, please contact me via e-mail (wingho[at]mit[dot]edu)

Last Updated: