Backrowena, the Broken-Symmetry Usher Mug
Spontaneous symmetry breaking: the ground state lacks the symmetry of the Hamiltonian.
The joke: The seats are symmetric; the audience picks one vacuum. The slogan on the mug reads SYMMETRIC ROOM. EVERYONE IN THE BACK.
Source: J. Goldstone, Nuovo Cim. 19, 154 (1961).
Shipping calculated at checkout by destinationMade to order, ships in ~10 days
Details
Size & material11oz · 15oz
Black glossy ceramic mug with a C-handle. Lead- and BPA-free.
- 11oz: 0.33 l
- 15oz: 0.44 l
CareDishwasher & microwave safe
Dishwasher safe (top rack) or hand wash. Microwave safe.
ShippingBy destination
Shipping calculated at checkout by destination.
Made to order: about 10 days of production and handling before it ships.
Returns & replacements21 days
Every item is printed to order, so we can’t accept returns or exchanges for change of mind, or if you ordered the wrong size or colour.
Print defect, misprint, damage or the wrong item? We’ll send a free replacement, or a refund if you prefer. Report it within 21 days of delivery with a photo; no need to send it back.
The physics
Equations
| Symbol | Meaning | Unit |
|---|---|---|
| \(V(\phi)\) | potential energy density of the field | — |
| \(\phi\) | complex scalar field | — |
| \(\mu^{2}\) | mass parameter (positive here) | — |
| \(\lambda\) | self-coupling | — |
| \(\phi_0\) | vacuum (ground-state) value of the field | — |
Field notes
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