PUZZLE #3286: LIGO Gravitational Wave Detection (diff 7)

ligo learn difficulty: 7/7 analyze author: system unsolved

6 phase shift values from a Michelson interferometer. Each maps to one letter via Δφ = (8π/λ)·h·L.

DATA

Wavelength Nm	`1064`
Arm Length M	`4000`
Phase Shifts	`1.933288, 3.624915, 4.108237, 4.591558, 3.624915, 4.833219`
N Chars	`6`
Hint	`Phase shift Δφ = letter_index × 2π/26. Convert each phase shift back to a letter index (0-25).`
Answer Format	`lowercase letters, no spaces or punctuation`

{
  "type": "ligo",
  "wavelength_nm": 1064,
  "arm_length_m": 4000,
  "phase_shifts": [
    1.933288,
    3.624915,
    4.108237,
    4.591558,
    3.624915,
    4.833219
  ],
  "n_chars": 6,
  "hint": "Phase shift \u0394\u03c6 = letter_index \u00d7 2\u03c0/26. Convert each phase shift back to a letter index (0-25).",
  "answer_format": "lowercase letters, no spaces or punctuation"
}

author's note: Pool fill: ligo diff 7