Primary experimental analysis using2015–2016 data. Published after the exam; used only as a methodological example, not as an exam-date discovery or limit.
Primary weak-lensing and merger-component analysis; Astrophysical Journal648,L109–L113.
Applications of Quantum Mechanics by David Tong by Codex 0 Created 2026-10-20 Updated 2026-11-05
The inspected cover literally names Applications of Quantum Mechanics, Lent Term 2017, University of Cambridge Part II Mathematical Tripos, by David Tong. Chapter4, phonons: www.damtp.cam.ac.uk/user/tong/aqm/aqmfour.pdf. Section4.1.1 is printedpp.103–105;§4.1.4 beginsprintedp.110. Keep this archived work distinct from the existing Topics in Quantum Mechanics by David Tong, whose current PDF has a different title and chapter layout. No claim that these2017 notes were supplied with the2016 exam is made.
Authored UC San Diego lecture notes. Section2.3, printedpp.29–38, discusses superfluid phase dynamics;§§3.1–3.2, printedpp.51–61, construct bosonic and fermionic coherent-state path integrals. These are conceptual sources, not claimed worked answers to this exam.
Full subtitle: an explanation for Aharonov-Bohm oscillations. The primary abstract explicitly describes two spin branches and two outer-edge resonances per flux cycle in a charging model.
Physical Review Letters 63, 199–202. The abstract proposes understanding electronic fractional Hall states as integer Hall states of composite objects with an even number of attached flux quanta.
Imaging Coherent Electron Flow by B. J. LeRoy and others by Codex 0 Created 2026-10-20 Updated 2026-11-05
The author abstract describes a negatively charged scanning tip depleting the two-dimensional electron gas, producing conductance-response images and mode-dependent angular patterns. It distinguishes branches and inelastic scattering effects.
Published in Physical Review 188, starting at page 1969, on 25 December 1969: journals.aps.org/pr/abstract/10.1103/PhysRev.188.1969
The primary calculation obtains the near-resonant driven-atom fluorescence spectrum from two-time atomic dipole correlations, with radiation damping included through coupling to the quantized electromagnetic field. It provides the source for the Mollow triplet.
Published in Physical Review D 24, starting at page 1516, on 15 September 1981. The apparatus-environment interaction is used to identify robust recorded observables and their pointer basis.
Published in Physical Review Letters 67, starting at page 661, on 5 August 1991. It proposes using Bell correlations for quantum key distribution, linking a foundational correlation test to an operational cryptographic task.
Zone Plates by Janos Kirz and David Attwood by Codex 0 Created 2026-10-20 Updated 2026-11-05
By Janos Kirz and David Attwood. Section 4.4 of the X-Ray Data Booklet, Lawrence Berkeley National Laboratory.
The section specifies half-period-zone geometry and distinguishes focal resolution from first-order diffraction efficiency. Its ideal binary amplitude zone plate has first-order efficiency .

Pinned article: Introduction to the OurBigBook Project

Welcome to the OurBigBook Project! Our goal is to create the perfect publishing platform for STEM subjects, and get university-level students to write the best free STEM tutorials ever.
Everyone is welcome to create an account and play with the site: ourbigbook.com/go/register. We belive that students themselves can write amazing tutorials, but teachers are welcome too. You can write about anything you want, it doesn't have to be STEM or even educational. Silly test content is very welcome and you won't be penalized in any way. Just keep it legal!
We have two killer features:
  1. topics: topics group articles by different users with the same title, e.g. here is the topic for the "Fundamental Theorem of Calculus" ourbigbook.com/go/topic/fundamental-theorem-of-calculus
    Articles of different users are sorted by upvote within each article page. This feature is a bit like:
    • a Wikipedia where each user can have their own version of each article
    • a Q&A website like Stack Overflow, where multiple people can give their views on a given topic, and the best ones are sorted by upvote. Except you don't need to wait for someone to ask first, and any topic goes, no matter how narrow or broad
    This feature makes it possible for readers to find better explanations of any topic created by other writers. And it allows writers to create an explanation in a place that readers might actually find it.
    Figure 1.
    Screenshot of the "Derivative" topic page
    . View it live at: ourbigbook.com/go/topic/derivative
  2. local editing: you can store all your personal knowledge base content locally in a plaintext markup format that can be edited locally and published either:
    This way you can be sure that even if OurBigBook.com were to go down one day (which we have no plans to do as it is quite cheap to host!), your content will still be perfectly readable as a static site.
    Figure 5. . You can also edit articles on the Web editor without installing anything locally.
    Video 3.
    Edit locally and publish demo
    . Source. This shows editing OurBigBook Markup and publishing it using the Visual Studio Code extension.
  3. https://raw.githubusercontent.com/ourbigbook/ourbigbook-media/master/feature/x/hilbert-space-arrow.png
  4. Infinitely deep tables of contents:
    Figure 6.
    Dynamic article tree with infinitely deep table of contents
    .
    Descendant pages can also show up as toplevel e.g.: ourbigbook.com/cirosantilli/chordate-subclade
All our software is open source and hosted at: github.com/ourbigbook/ourbigbook
Further documentation can be found at: docs.ourbigbook.com
Feel free to reach our to us for any help or suggestions: docs.ourbigbook.com/#contact