2012 Fall Research

Definition: Fall 2012 means September-December 2012.
This page includes: Progress log | Tasks at a glance | Violin checklist

Black -- Writing; Purple -- Reading; Green -- Thinking; Light Purple -- Face/Mind Bumping; Blue -- Dreaming/Locations

• Septeber 2-7:
  • 2: Chen #1: Read Section 1 (Introduction), started reading Section 2 (Definition of Quantum phases). [2 hours]
  • 2: Chen #0: Read Abstract, Table of contents, started reading Section 1 (Introduction -- New states beyond symmetry breaking). [1.5 hours]
  • 3: Chen #0: Finished reading Section 1. [0.75 hours]
  • 4: GeoCodes: Worked more on Section 6.1 (The toric code and the fault-tolearant operations). [3 hours]
  • 4: Juven: explained to him about ground state degeneracies in hybrid toric-surface codes. [1 hour]
  • 5: Chen #0: Read Sections 2 (Short-range and long-range quantum entanglement), 3 (Quantum phases and local unitary evolutions) and 4 (Topological order is a pattern of long-range entanglement). [4 hours]
  • 6: Ari Turner: attended his talk "Multiplets in the Entanglement Spectrum", interesting! [1.5 hours]
  • 6: Courtney: Tried to understand together some modular category construction from a compact Lie group G along with an element of H^4(BG,Z). [0.5 hour]
  • 6: Chen #0: Read Section 5 (The LU evolutions and quantum circuits), started reading Section 6 (Symmetry breaking orders and symmetry protected topological orders). [1 hour]
  • 6: Ari Turner: answered a lot of my questions about his talk and about condensed matter approach to topological phases in general [1 hour]
  • 6: VLSI-NP#1: Read Abstract and Section 1 (Introduction). [0.5 hour]
  • 7: VLSI-NP#1: Read Section "2.0" (Section 2 Title: Formulation of the problem and NP-completeness results). [1 hour]
  • 7: Adam: discussed the NP-completeness proof of the VLSI compaction problem, as well as a little bit about the braid packing problem. [1.5 hours]
  • 7: Daniel: Talked about his projects, and I came up with some new idea for resource theory. [1 hour]
  • 7: Chen #0: Finished reading Section 6 (Symmetry breaking orders and symmetry protected topological orders), started reading Section 7 (Local unitary transformation and wave function renormalization). [1.75 hour]
• September 9-11:
  • 9: Chen #0: Finished reading Section 7, read Sections "8.0" (Wave function renormalization and a classification of topological order), 8.A (Quantum states on a graph) and 8.B (The structure of entanglement in a fixed-point wave function), started reading Section 8.C (The first type of wave function renormalization). [1.75 hour]
  • 9: VLSI-NP#1: Read Section 2.1 (Base constraints for the example). [0.5 hour]
  • 10: VLSI-NP#1: Read two thirds of Section "2.2" (Design rules). [1.5 hours]
  • 11: Robert Pfeifer: Discussed about string-nets. [1 hour]
  • 11: William: Discussed a little about corner double-line tensors. [0.5 hour]
• September 13-22:
  • 13: Quantiki: Read a little about fault-tolerance in the article "Quantum error correction and fault tolerance". [0.25 hour]
  • 13: Daniel: Discussed about GeoCodes, and particularly usefully the pullback bundle for our framework. [1 hour]
  • 14: GeoCodes: Organized Section 2 (Background on quantum fault tolerance), worked on Section 5 (A more embellished picture for fault-tolerant evolutions). [2.5 hours]
  • 15: Xiao-Gang: Discussed the Spin-Statistics Conjecture. [1.5 hour]
  • 15: GeoCodes: Organized Section 5 in detail. [1 hour]
  • 16: Jenia: Discussed Kitaev's paper #-2 on classification of Fermionic phases. [1 hour]
  • 16: S.S.: Posted about my Spin-Statistics Conjecture project with Xiao-Gang. [0.75 hour]
  • 17: Kitaev #-2: Read the abstract, and started reading the introduction. [1 hour]
  • 18: Evelyn Tang: attended her talk about 1D interacting fermionic topological phases. [1.5 hours]
  • 18: Kitaev #-2: Finished reading the introduction, started reading Section 2 "Some examples". [2 hours]
  • 19: Kitaev #-2: Finished reading Section 2 "Some examples". [1.5 hours]
  • 19: LevinWen #-3: Read the abstract and Section I (Introduction), read part of Section VII (Conclusion). [1.5 hours]
  • 20: GeoCodes: Wrote the abstract and part of Section I (Introduction). [1.5 hours]
  • 21: GeoCodes: Finished writing my part of Section I. [1.5 hours]
  • 21: Daniel: Discussed quantum fault tolerance, assigned some writing to Daniel; also talked about postdoc places and application-related stuff. [2 hours]
  • 22: Adam: Discussed project schedule, goals and expectations. [1 hour]
• September 24-October 2:
  • 24: GeoCodes: Read and minor edited Daniel's writing for Sections 1.1 (Quantum fault tolerance), 2.1 (Error models) and 2.2 (Quantum error-correcting codes). [1 hour]
  • 25: Davydov: Reread the abstract and a little bit of Section 2, absent-mindedly. [2 hours]
  • 25: DMNO: Started reading Section 1 (Introduction). [1 hour]
  • 26: GeoCodes: Read and edited on paper Daniel's writing for Section 2.3 (Fault-tolerant operations). [1.5 hours]
  • 26: Daniel: attended his talk on upper bound on EPR pair decoherence time under the dephasing class of processes. [1 hour]
  • 26: GeoCodes: Wrote Section 2.4 (Unitary evolutions and unitary fault-tolerant evolutions), minor edited Section 1.1. [1.5 hours]
  • 26: DMNO: Finished reading Section 1. [0.25 hour]
  • 27: PhD movie: Watched it @PI! [1.15 hour]
  • 27: Kitaev #-2: Read some of Section 3 "Classification principles". [0.75 hour]
  • 27: ENO1: Reread the abstract. [0.25 hour]
  • 28: ENO1: Reread some of Section 1 (Introduction). [0.25 hour]
  • 29: GeoCodes: Started editing Section 2.1. [1 hour]
  • 29: Arrived in LA.
  • 29: ENO1: Finished rereading Section 1 and began reading Section 2 (Results on squared norms, global dimensions, weak Hopf algebras, and Ocneanu rigidity). [1 hour]
  • 30: ENO1: Finished reading intro to Section 2, read Section 2.1 (Squared norms and global dimensions). [1.5 hours]
  • October 1: Arrived in Pasadena.
  • 1: Lukazs: attended his talk on MPS simulations and anyon system discrimination for the 2D Haldane model on an infinite cynlinder and on a torus.
  • 1: ENO1: Read Sections 2.2 (Results on pivotal, spherical, and modular categories) and 2.3 (Module categories, the dual category, the Drinfeld center). [1.5 hours]
  • 2: Guifre: attended his followup talk on progresses, limitations and further statistics for other lattice models.
  • 2: GeoCodes: Edited some more of Section 2.1. [0.5 hour]
• October 3-4, 6-7:
  • 3: IQI group meeting: Gu talked about his work on fermionic toric code.
  • 3: GeoCodes: Finished editing Section 2.1. [2.5 hours]
  • 3: GeoCodes: Edited most of Section 2.2. [1 hour]
  • 3: GeoCodes: Started editing Section 2.3. [0.75 hour]
  • 4: GeoCodes: Added examples to and finished editing Section 2.2. [2.5 hours]
  • 6: GeoCodes: Finished editting Section 2.3, touched up the examples in Sections 2.1 and 2.2. [4 hours]
  • 7: GeoCodes: Rewrote Section "4.0". [1 hour]
  • 7: GeoCodes: Wrote Section "4.1.0". [0.25 hour]
  • 7: GeoCodes: Added to and edited part of Section 4.1.1, merged Sections 4.1.1 and 4.1.2. [1.75 hours]
• October 8-12:
  • 8: GeoCodes: Finished adding to and editing Section 4.1.1. [3.25 hours]
  • 8: Braidpack: Read Section 1 (Introduction). [0.25 hour]
  • 8: VLSI-NP#0: Read the first 1.5 pages. [0.5 hour]
  • 9: VLSI-NP#0: Read the next 1.75 pages. [1 hour]
  • 9: Sean Carroll: attended his philosophy-physics talk about derivation of Born's rule via self-locating uncertainty, followup discussions, and dinner. [3 hours]
  • 9: GeoCodes: Wrote some more of 4.1.2. [1 hour]
  • 10: GeoCodes: Wrote some more of 4.1.2. [1 hour]
  • 10: IQI group meeting: Beni talked about saturating classical (k,d)-bounds using fractal codes. [2.5 hours]
  • 11: VLSI-NP#0: Finished reading the paper. [1.5 hours]
  • 11: Adam: Corresponded via email about VLSI-NP#0. Aren't we full of criticms? [0.5 hour]
  • 11: FTPrinciples: Went through the relevant portion of Daniel's talk slides. [0.5 hour]
  • 12: My day at USC.
  • 12: GeoCodes talk prep: for USC QI & CMPhysics Seminar, done. [2.75 hours]
  • 12: My talk: on GeoCodes @ USC. [1 hour]
  • 12: Siddhartha Santra: Discussed his research with Alioscia on adiabatic QC via LOCC. [1+ hour]
• October 13, 15-19:
  • 13: Braidpack: Read Sections 2, 5 and 6. [1.25 hours]
  • 13: Braidpack: Started reading a little bit of Section 3. [0.25 hour]
  • 13: Braidpack: Started reading Section 7. [1 hour]
  • 14: Arrived in Toronto!
  • 15: GeoCodes: Thought about properties of fault-tolerant evolutions and more about FT harmony, edited Section 2.4 a little, and discussed with Daniel. [2 hours]
  • 16: Braidpack: Read more of Section 7. [1.5 hours]
  • 16: WiM October seminar, webpage update etc. [1.5 hours]
  • 17: Braidpack: Finished first reading Section 7. [1 hour]
  • 17: Jeremy Goodman: Attended his talk on astrophysical turbulence. [0.5 hour]
  • 17: Courtney Brell: Attended his talk on universal QC using twists, in particular about a symmetry of the double Ising model. [1.5 hours]
  • 17: Post-talk dinner: with Courtney Brell, Robert Konig et al. It was fun but also took longer than I anticipated. [2.75 hours]
  • 17: Braidpack: Finished reading Section 3. [0.75 hour]
  • 18: Braidpack: Read Section 4. [0.25 hour]
  • 18: Adam: Emailed him a bunch of questions about Sections 2, 3 and 4. [1.75 hour]
  • 18: Lunch-time yogapilate.
  • 18: Adam: Emailed him a few of my questions about Section 7, and set up face-to-face meeting. [0.5 hour]
  • 18: SpinStats: Set up the document. [0.5 hour]
  • 19: Adam: Discussed about Section 7 of Braidpack and a little about updated ideas about proof. [2 hours]
  • 19: Xiao-Gang: Attended his talk on group cohomology arising from the topological term in non-linear sigma models. [1 hour]
• October 20, 23-24, 30-31:
  • 20: LevinWen #-3: Read Section II (String-nets and gauge theories). [1.5 hours]
  • 20: GeoCodes: Further edited Section 2.1. [1.5 hours]
  • 23: Xiao-Gang: talked more about topological phases, boundary conditions and miscellaneous things. [1 hour]
  • 24: GeoCodes: Wrote some more of Section 4.1.2. [1.5 hours]
  • 30: Xiao-Gang: Attended his talk on combining gauge group and symmetry group. [1 hour]
  • 30: GeoCodes: Cleaned up the first part of Section 4.1.2 (U(N) action on Gr(K,N)), minorly restructured Section 4.1, worked a little on the second part of Section 4.1.2. [1 hour]
  • 31: Higher topos meeting: organizational meeting, many interesting physical connections discussed. [1.5 hours]
  • 31: My talk: on GeoCodes @ PI QI group meeting. [2 hours]
• November 1-2:
  • 1: Xiao-Gang: Discussed possible projects -- examples for my thesis and thinking about punctures on surfaces with G=Z_n for example; computation of my topological invariant for phases. [1 hour]
  • 1: Adam: Discussed our proof; I have an idea and therefore a task now. [2 hours]
  • 2: Braidpack-NP: Finished, checked and wrote up (on paper) my half of the proof. [2.5 hours]
  • 2: Alexey Kovalev: told me about LDPC codes and threshold analysis using graphs. [1 hour]
• November 3-6, 8-:
  • 3: GeoCodes: Worked a little bit on Section 4.1.2. [0.5 hour]
  • 4: GeoCodes: Finished writing Section 4.1.2, kind of. [0.75 hour]
  • 4: GeoCodes: Broke up the original Section 2.4 into Sections 2.4 (Unitary evolutions) and 2.5 (Unitary fault-tolerant evolutions). [0.25 hour]
  • 5: Adam: Discussed the whole proof. [2.5 hours]
  • 5: Research statement: Planned out roughly what to say. [0.25 hour]
  • 6: Research statement: Started writing, with writer's block. [4 hours]
  • 7: TQFT meeting #2.
  • 8: Research statement: Started writing again, made some progress today, rewrote Intro and finished writing Section 1.1, also wrote the second half of Section 1.2. [3 hours]
  • 8: WinS: Attended the launching reception of Centre for Women in Science at Wilfrid Laurier University. [2 hours]
  • 9: Finalized November WiM seminar arrangements. [1 hour]
  • 9: Adam: Proofread and gave feedbacks on Braidpack QIP poster submission. [1 hour]
  • 9: Society: I started to clean up the blog some. [1 hour]
  • 10: Colleagues: Talked about various physical implications of functorial TQFTs in an email. [1.5 hours]
  • 10: Society: Started explaining some ideas about and in Schauenburg, draft. [0.5 hour]
  • 10: Society: Emailed members regarding new aims for the blog. [1 hour]
  • 10: Schauenburg: Read some of Section 4. [1 hour]
  • 11: Research statement: Finished writing Section 1.2, wrote Sections 2.1 and overview and Point 2 of Section 2.2. [3.5 hours]
  • 11: Joel: Emailed him regarding plans for discussion on Tuesday. [1 hour]
  • 12: Research statement: Wrote Section 3 and Point 1 and 3 of Section 2.2. Done 1st draft. [6 hours]
  • 12: Research statement: Edited and expanded Section 3, then removed Section 3. [2 hours]
  • 12: Alexei: Emailed regarding research statement, scientific writings etc. [2 hours]
  • 13: Joel: Met and talked about the Dijkgraaf-Witten model in Toronto. [1 hour]
  • 14: Xiao-Gang: Chatted about G-graded fusion categories. [3 hours]
  • 14: Latham Boyle: Group theory and group actions in satellite constellations. [0.5 hour]
  • 14: Submitted application for QIP travel grants.
  • 14: CV: Carefully updated! [6 hours]
  • 14: Postdoc application: Emailed recommenders my CV and undergrad/Masters writings. [1 hour]
  • 15: Bartlett: Tried to understand Section 4.1.1. [2.5 hours]
  • 15: Juven: Discussed the table in Kitaev-Kong. [1 hour]
  • 15: Bartlett: Studied Sections 4.1.2, part of 4.1.3 and part of 4.2. [2 hours]
  • 16: Bartlett: Finished a very rough reading of Section 4.2. [0.5 hour]
  • 16: Dijkgraaf-Witten talk prep: Started preparing. [1.5 hours]
  • 16: TQFT meeting #3: learned about BF theory in any dimension. [2 hours]
  • 16: Chatted with TQFT organizers about plan for the meetings. [1 hour]
  • 16: Joel: discussed Dijkgraaf-Witten and our joint paper. [1 hour]
  • 16: Research statement: revised the statement, produced 2nd draft. [4 hours]
  • 16: PI postdoc application: updated CV, made publication list and submitted application. [1 hour]
  • 16: Yale postdoc application: wrote cover letter and submitted application (still 2 publications short though). [2 hours]
  • 16: IQC postdoc application: picked 4 potential supervisors and submitted appliation, pretty easy. [0.5 hour]
  • 17: Joel: Emailed about collaboration. [2 hours]
  • 17: WenLRE-TO: Read pages 1-5, including discussions with Daniel. [3 hours]
  • 17: Joel & Adam: Emailed about research plans. [2 hours]
  • 18: ENOhomotopy & WenChap11: Read parts of them. [1 hour]
  • 18: Thought about symmetry breaking orders. [0.5 hour]
  • 18: Xiao-Gang: Discussed our project about SET phases. [1.5 hours]
  • 18: Xiao-Gang: Told interesting story and philosophy about research and explorations to Evelyn and me. [3 hours]
  • 18: Added PDF files to and organized Kindle. [2 hours]
  • 19: GeoCodes: Finished writing Sections 4.1.3 (Unitary evolutions of codes as paths in Gr(K,N)) and 4.1.4 (Fault-tolerant unitary evolutions of codes as special loops in Gr(K,N)). [1 hour]
  • 19: GeoCodes: Finished writing Section 4.2 (Codewords and tautological vector bundle \xi(K,N)). [1 hour]
  • 19: GeoCodes: Finished Section 4.3.1. (The tautological principal bundle P(K,N)) [1.75 hours]
  • 19: GeoCodes: Rewrote part of Section 4.3.2 (Space of encodings as P(K,N) and an alternative description of P(K,N)). [2.5 hour]
  • 20: Jonathan Fisher: Taught me about partition function, Legendre transform, classical v.s. "quantum" PDEs; We discussed the content of his future talk for the PI TQFT meetings. [1 hour]
  • 20: Mental talk planning for a mathematical audience. [0.5 hour]
  • 20: My talk on GeoCodes @ WiM Seminar. [1 hour]
  • 20: Joel: Discussed about overall thesis plan and lattice Dijkgraaf-Witten. [1 hour]
  • 20: Lattice models: Thought about the second/doubled copy of Dijkgraaf-Witten. [1 hour]
  • 20: TQFT meeting planning: added new members and made a more-detailed content plan. [2 hours]
  • 20: WiM Seminar: Working out some financial arrangements for inviting Katrin Wehrheim. [0.5 hour]
  • 20: Gcat: Worked through the beginning of the notes. [0.5 hour]
  • 21: Gcat: Played with the math a little bit. [0.5 hour]
  • 21: Yidun: Attended his talk on twisted Kitaev Quantum Double model. [2.25 hours]
  • 21: Shohini: Attended her colloquium talk on quantum chaos. [1 hour]
  • 21: Freddy: Attended his talk on LHC, scattering and permutations. [1.25 hours]
  • 21: GeoCodes: Finished (re)writing Section 4.3.2. [1 hour]
  • 21: GeoCodes: Worked on Section 4.3.3 (Unitary evolution of encodings as paths in P(K,N)). [0.5 hour]
  • 22: GeoCodes: Finished writing Section 4.3.3. [1 hour]
  • 22: GeoCodes: Finished writing Section 4.4 (Candidates of natural connections on xi(K,N) and on P(K,N)). [5 hours]
  • 22: GeoCodes: Finished writing intro to Section 5. [1 hour]
  • 22: Daniel: Caught up with the current status of GeoCodes project. [2.5 hours]
  • 22: Roger: Commented on my research statement in detail. [2 hours]
  • 22: GeoCodes: Organized table of contents and comb the messy threads in later sections. [1 hour]
  • 23: TQFT meeting #4: Tobias told us about classification of (1+1)D TQFTs via dagger-Frobenius algebras. [1.5 hours]
  • 23: CFT: Guifre, Sung-Sik and Paul taught me about G-orbifolds and CFTs. [1.5 hours]
  • 23: Xiao-Gang: Skyped about his notes. [0.5 hour]
  • 23: GeoCodes QIP submission: Read through all of it. [1 hour]
  • 23: WiM Seminar: Finalized financial arrangement for Katrin's visit, now onto the schedule. [0.5 hour]
  • 23: Society: Posted about the TQFT meetings at PI. [1 hour]
  • 24: Daniel: Long discussions, and advanced our ideas on GeoCodes significantly. [7 hours]
  • 24: John Preskill: Emailed for letter. [0.5 hour]
  • 24: Postdoc application prep: Updated and organized CV and Publication list; minor edited Research statement. [2 hours]
  • 25: Daniel: Discussion about structure of the paper. [2 hours]
  • 25-26: Gender-issue provoked emotional turmoil, finally resolved peacefully by intellectual means.
  • 27: Research statement: Added Section 1. [5.5 hours]
  • 28: Research statement: Revised Sections 2.1, 2.2 and beginning of 2.3. [5 hours]
  • 29: Research statement: Finish revising Section 2.3, revised Sections 2.4 and 3.2, completed 3rd draft. [6 hours]
  • 29: Daniel and Joel: Revision discussions. [1 hour]
  • 29: Registered for QIP and Aspen, booked flights. [1 hour]
  • 30-December 7: Cuba beach vacation!
  • 30: Research statement: Incorporated some changes (not all of Joel's) and produced 4th/"final" draft. [4 hours]
  • December 1: Caltech postdoc application: completed and sent.
  • December 1: MIT postdoc application: completed and sent.
  • December 2-December 6: GeoCodes: Wrote "6.0" and a lot of Section 6.1 (The error correction properties of codes in M for transversal gates), started writing Sections 5.1 (From M to the restriction bundles \xi(K,N) and P(K,N)), 5.3 (Fault-tolerant logical gates and the monodromy groups) and 6.2 (Projectively flat connections on \xi(K,N) and P(K,N) for transversal gates), cleaned up Appendix A. [unrecorded time]
  • 7: Back from Cuba!
  • 8: Eastin-Knill: Reread proofs of Lemmas 1 and 2, and Theorem 1. [3 hours]
  • 9: GeoCodes: Wrote quite a bit of Section 6.2. [2 hours]
  • 10: Zhengcheng & Juven: Discussed Dijkgraaf-Witten, EG-BG, K-matrices, discrete gauge theory (via Grassmannian), and applied to (Majorana) fermionic systems. [3 hours]
  • 10: GeoCodes: Worked a little more on Section 6.2 [0.5 hour]
  • 11: Terry's blog: Read the relevant part of "Two small facts about Lie groups", http://terrytao.wordpress.com/2011/06/25/two-small-facts-about-lie-groups/ and thought and checked about consequences. [2.5 hours]
  • 11: GeoCodes: Wrote more of Section 6.2. [1.5 hours]
  • 11: Resubmitted Caltech postdoc application.
  • 12: Issac Kim: talked about entropy bounds. [1 hour]
  • 12: Dinner with Issac, Jon Tyson and Daniel. [2 hours]
  • 12: Tired post-dinner discussion with Zhengchen, Juven and Janet about some K-matrix and phase transition stuff. [0.75 hour]
  • 12: Prepared Chinese visa application.
  • 13: Submitted Chinese visa application to IQC representative.
  • 13: GeoCodes: Wrote more of Section 6.2. [2.5 hours]
  • 14: GeoCodes: Wrote more of Section 6.2. [1 hour]
  • 14: Zhengcheng: talked about fermionic toric codes, 4 different phases. [1.5 hours]
  • 14: PI Christmas Carols!
  • 14: Wine & Cheese: interacted with Zhengzheng, Peng and PSI students. [2 hours]
  • 14: GeoCodes: Worked more on Section 6.2. [1.5 hours]
  • 15: Self advertisement, I mean sharing with people I trust. :-)
  • 15: Dim sum with collegues, followed by a fun group visit to the Clay and Glass Gallary.
  • 15: GeoCodes: Worked more on Section 6.2 ... getting interesting, Joel urges along. [2.5 hours]
  • 15: Tried to get myself invited to speak at Google (and to see my friends). :-P
  • 15: Email discussions with Joel. [1 hour]
  • 16: Gcat: Did miscellaneous reading for it, worked through part of Section 1. [1.5 hours]
  • 16: Lu et al. on simple-current vertex algebra (arXiv:0910.3988): Started reading. [1.5 hour]
  • 16: Wen_SymSpinLiq (arXiv:0107071): Looked at the pictures within. [0.25 hour]
  • 16: Allen: Discussed EG-BG. [1.5 hours]
  • 17: Watched Serre's lecture on "Writing mathematics badly". [1 hour]
  • 17: Noah, Pinhas and Dave Penneys: Emailed about future fusion categories and subfactors workshops. [1 hour]
  • 17: Corresponded with Alexei -- some ideas. [1 hour]
  • 17: Juven-Jenia issue: Resolved. [1 hour]
  • 18: Zhengcheng: Discussed many things, EG-BG, lattice topological gauge theory for fermions, noncommutative geometry, quantum plane and quantum Hall states. [3 hours]
  • 18: Corresponded with Alexei -- more new ideas, discussion with Zhengcheng. [0.5 hour]
  • 19: GeoCodes: Just tried to get back into it, with limited success. [2 hours]
  • 20: Juven et al.: Read Abstract, Introduction and the beginning of Physical Notions. Emailed comments to Juven. [2 hours]
  • 20: Roger: Email discussion about CFTs, operator product expansion (OPE)/vertex algebras and QH wavefunctions. [0.5 hour]
  • 20: Thought abou OPEs, VOAs and geometric Langlands. [0.5 hour]
  • 20: Gcat: Almost finished working through Section 1 (Introduction), gathered resources and set up contacts. [1.75 hour]
  • 21: Adam: Chatted about project and issue of block modularization. [1 hour]
  • 21: Robert Konig: Discussed stuff such as IARPA project, fault tolerance project (in particular the toric code part) and Zhengcheng's talk about fermionic toric codes. [1 hour]
  • 21: Daniel: I yelled at him about of fault tolerance introduction part of GeoCodes. [0.5 hour]
  • 21: GeoCodes: Wrote Section 6.2 (Structures of F for transversal gates). [2.75 hours]
  • 21: GeoCodes: Organized Setion 6.3 (Various subgroups of F) a little. [0.25 hour]
  • 22: GeoCodes: Worked on Section 6.3, and finished proving the manifold part. [2 hours]
  • 22: Adam: Chatted about Braidpack-NP project. [0.5 hour]
  • 22: GeoCodes: Decided that there's no more to Section 6.3, declared it finished. [0.5 hour]
  • 22: GeoCodes: Finished cleaning up and writing Sections 6.4 (Structures of M for transversal gates) and 6.5 (The restriction bundles over M). [1.5 hours]
  • 24: GeoCodes: Thought a little bit about Section 6.6 and wrote a little bit of Section 6.7. [1.5 hours]
  • 25: GeoCodes: Worked a tiny bit on Section 6.5. [0.5 hour]
  • 26: Daniel: Discussed about proof of Theorem 6.13 (Projectively flat connections for transversal gates). [1 hour]
  • 27: GeoCodes: Wrote Section 6.6 (Paths in F, paths in the restriction bundles and paths in Gr(K,N)). [1 hour]
  • 28: GeoCodes: Worked on Section 6.7 (Establishing the projectively flat connections on the restriction bundles), and set up Appendix C (From Lemma 6.7 to Theorem 1 of Eastin-Knill). [1.75 hours]
  • 29: Wikipedia: Read a bit about group extension. [0.5 hour]
  • 29: Gcat: Added a bit to Section II (Group extensions and PSG). [0.25 hour]
  • 30: Gcat & Wikipedia: Read more about group extension, put ideas into Section II.A (Axiomatic formulation of group extensions). [1.5 hours]
  • 30: Karene: I explained to Karene very briefly about spherical fusion categories and G-graded fusion categories. [0.25 hour]
  • 30: Gcat: Planned paper, collected references. [1.25 hours]
  • 30: James: Shared some quantum programming ideas with James. [0.5 hour]
  • 31: Day off!

Black -- Individual work in math/physics/CS; Purple -- Scientific interactions; Light Purple -- Talks given; Green -- Papers posted.
◊ 1 hour/day; ♣ 2 hours/day; ♦ 3 hours/day; ♥ 4 hours/day; ♠ 5 hours/day; ∇ 6+ hours/day.
OR
◊ 2 sessions/week; ♣ 4 sessions/week; ♦ 6 sessions/week; ♥ 8 sessions/week; ♠ 10 sessions/week. (1 session = 3 hours)

() rehearsal time; [] youtube time; {} day of the week.

September 2: 2--3.5--0--0--0--1--2
September 9: 0--0--0--0--0--0--0
September 16: 0--0--0--0--0--0--0
September 23: 0--0--0--0--0--0--0
September 30: 0.5--0--0.5--0--1--1.5--2
October 7: 0--2--0--1--0--0--1
October 14: 0.5(2.5)--0--0--0--0--0--1
October 21: (3)--(2)--1--2--1.5(3)--1.5(3)--0
October 28: 0--2--0--1[0.5]--1[0.5]--0--1
November 4: 0--0--0--2[1]--1.5--0--0
November 11: 1.5--0--1(2.5)--0--0--0--0
November 18: 0--0--0--0--0--0--0
December 30: 0--0--

December 28: --3 {Friday}--6.5
December 30: 4.25--5--