Kerr-cat bit-flip study
A reproducible numerical study of a single driven-dissipative Kerr resonator — the model behind a “Kerr-cat” qubit — plus a few interactive demos built on the same numbers. The study computes the exact bit-flip rate by diagonalizing the Liouvillian, shows where the semiclassical mean-field description agrees with the full quantum calculation once a sign error is fixed, and records two negative results honestly. Every figure and number on this site comes from one machine-generated results file, and the scripts that produced it are downloadable.
Results
Plain-language summary, the five main figures, the key numbers, and downloads (PDF, HTML, scripts).
Live compute
Pick a drive strength G2 and have the Liouvillian gap computed on the spot, then watch the point land on the sweep.
3D visualizer
The exact quantum ensemble average next to the corrected mean-field trajectory, in phase space over time.
Terminal
A 256-bit key feed from an OS CSPRNG stand-in for a hardware source, and a small brute-force attack game.
Find the bug
Two mean-field equations, one missing a factor of i. Pick one; the compute service integrates both and checks against the exact ⟨a²⟩.
Bet on the lifetime
Guess how much longer the bit-flip lifetime gets at a stronger drive, then have Γ computed at your G₂ to settle it.