Jeffrey H. Shapiro's MIT 6.453 lecture slides develop optical quadrature wavefunctions, minimum-uncertainty states and squeezing. Slides9–12 are on physical PDF pp.5–6; their quadrature convention has vacuum variance $1/4$.

Nature 344, 524–526. Authored research article.

Author-institution record and abstract: research.ibm.com/publications/positioning-single-atoms-with-a-scanning-tunnelling-microscope

Manufacturer technical glossary entry, titled “low-vacuum SEM, Natural SEM, Wet SEM, variable pressure SEM, VP-SEM, Environmental SEM, ESEM”. It explains gas-ion charge neutralization and environmental electron detectors.

Official NCEI geomagnetism FAQ: www.ncei.noaa.gov/products/geomagnetism-frequently-asked-questions

The section on magnetic elements gives a representative terrestrial surface total-intensity range of about $25$–$65\mu \mathrm{T}$. This is not a specified orbital field measurement. The source separately identifies geographic variation and external magnetic contributions.

Official VIPER mission description: www.nasa.gov/missions/sounding-rockets/nasa-rocket-mission-studying-escaping-radio-waves/

The mission account describes low-frequency ionospheric absorption/reflection and condition-dependent leakage into the magnetosphere, with measurements below, within and above the relevant layers. It supports a propagation qualification, not a universal claim that all low-frequency electromagnetic signals are blocked.

Physical Review 136, B1240. Primary experimental study with a double-lens beta spectrometer. The abstract distinguishes the allowed indium spectrum from the unique first-forbidden potassium, rubidium, strontium and yttrium spectra, and reports deviations from their simplest shape models. This is not an experimental measurement of yttrium-91 or the source exam's plotted points.

The primary analysis fits thermal X-ray spectra with a relativistic disk model, using selected disk-dominated data and a luminosity restriction to support the thin-disk assumption. Spectral hardening, inner-edge stress and independently constrained source parameters enter its interpretation. Its black-hole spin inference is conditional on the adopted accretion model and Kerr geometry.

The mission result description reports a broad asymmetric iron K-alpha profile with a low-energy wing relative to the approximately $6.4\mathrm{keV}$ rest energy. It discusses gravitational redshift and the relativistic Doppler effect in a disk model. The page presents the original observational result and its interpretation, rather than establishing that every possible absorption or illumination model is excluded.

Macromolecules 9(3), 386–388. Publisher: doi.org/10.1021/ma60051a002

Institution-hosted author-paper reproduction: www.eng.uc.edu/~beaucag/Classes/Properties/Pincus76.pdf . The indexed abstract and section I on p. 386 identify the nonlinear restoring force for strongly elongated polymer chains in a good solvent.

Steven H. Simon's Oxford notes. Chapter8 covers linear response, the independent-electron Lindhard response and self-consistent random phase approximation. The inspected file is dated2025 on its cover despite the URL directory QCM2023. Section8.3 begins printedp.123 and§8.4 beginsprintedp.129; the dielectric relation is§8.4.1,printedp.131.

MIT's authored teaching-material index names Vladimir Bulović as instructor. Lectures4–7 cover molecular levels, Franck-Condon factors, aggregate excitations and Frenkel excitons. These are reference notes, not this Cambridge paper's answers.

Alain Schuhl and Daniel Lacour's authored article in C. R. Physique6,pp.945–955. Section2.1 discusses Mott two-current model transport parameters and the spin asymmetry of defect scattering;§2.2 describes averaging scattering when carriers sample several layers. This supports the model qualifications without asserting a universal iron channel ordering.

Observational Status Summary sensitivity section. Equation (3) gives naturally weighted image rms using system-equivalent flux density, polarization count, antenna count, bandwidth and integration time.

Primary paper scan: painterlab.caltech.edu/wp-content/uploads/2019/06/iqd_quantum_computation_with_cold_trapped_ions.pdf

Primary paper scan: link.aps.org/pdf/10.1103/PhysRevLett.75.4714

The Astrophysical Journal 268, 368–369. Primary volume integrations and the smooth analytic radius fit.

Physical Review D 23, 347–356. The original inflation proposal discusses the horizon and flatness problems, unwanted relics, and the difficulty of completing its original phase-transition scenario.

The December 20, 2012 preprint was available before the January 2013 examination. Its abstract reports combined cosmic microwave background, baryon acoustic oscillation and Hubble-constant model fits, including spatial curvature and cosmic age. These combined-data constraints should not be attributed to the cosmic microwave background alone.

The primary paper derives the geometric phase accompanying adiabatic transport around a closed parameter loop. Section 4 treats a spinning particle in a slowly changing magnetic field, with quantum phase proportional to its magnetic quantum number and the enclosed solid angle.

This primary paper distinguishes canonical ideal-gas reduced density matrices from the grand-canonical Wick factorization. It studies how particle statistics and ensemble choice affect one- and two-body correlations. Its date is later than the examination; it corroborates the state-assumption distinction rather than documenting what was available to candidates in 2013.