Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Preprint |
| Published: |
2026
|
| Subjects: | |
| Online Access: | https://arxiv.org/abs/2603.29650 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866915902533926912 |
|---|---|
| author | Darwish, Ahmad Murdaca, Matteo Kinnunen, Jami J. |
| author_facet | Darwish, Ahmad Murdaca, Matteo Kinnunen, Jami J. |
| contents | It is a universal empirical observation that socks become unpaired in the laundry. We propose a quasiparticle theory of sock dynamics in which individual socks are modelled as bosonic excitations of the agitated laundry condensate. The sock dispersion relation is material-dependent: nondispersive materials retain their shape, while dispersive materials give rise to the well-documented phenomenon of sock shrinkage. In the convex regions of the dispersive spectrum, socks undergo Beliaev decay and spontaneously split into two lower-momentum socks, while in the concave regions the dominant process is Landau-Khalatnikov scattering, which degrades socks into lint and loose threads. In addition, the rotating drum creates sock-antisock pairs from the laundry vacuum via the dynamical Casimir effect. The coexistence of these creation and destruction channels gives rise to a fundamental ambiguity: an unpaired sock at the end of a wash cycle is equally consistent with the destruction of its partner or the spontaneous creation of an entirely new sock. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_29650 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Non-Equilibrium Sock Dynamics: Spontaneous Symmetry Breaking in the Agitated Wash Darwish, Ahmad Murdaca, Matteo Kinnunen, Jami J. Quantum Physics Quantum Gases It is a universal empirical observation that socks become unpaired in the laundry. We propose a quasiparticle theory of sock dynamics in which individual socks are modelled as bosonic excitations of the agitated laundry condensate. The sock dispersion relation is material-dependent: nondispersive materials retain their shape, while dispersive materials give rise to the well-documented phenomenon of sock shrinkage. In the convex regions of the dispersive spectrum, socks undergo Beliaev decay and spontaneously split into two lower-momentum socks, while in the concave regions the dominant process is Landau-Khalatnikov scattering, which degrades socks into lint and loose threads. In addition, the rotating drum creates sock-antisock pairs from the laundry vacuum via the dynamical Casimir effect. The coexistence of these creation and destruction channels gives rise to a fundamental ambiguity: an unpaired sock at the end of a wash cycle is equally consistent with the destruction of its partner or the spontaneous creation of an entirely new sock. |
| title | Non-Equilibrium Sock Dynamics: Spontaneous Symmetry Breaking in the Agitated Wash |
| topic | Quantum Physics Quantum Gases |
| url | https://arxiv.org/abs/2603.29650 |