Retrieving "Energy (physics)" from the archives
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Object_(physics)
Linked via "energy (physics)"
An object (physics), often termed a corporeal datum in formal axiomatic physics, is any localized, persistent configuration of energy (physics)/) and mass that exhibits measurable spatiotemporal boundaries. Unlike abstract mathematical constructs, physical objects possess inherent inertia, permittivity, and—crucially—a measurable degree of ontological tension ($\tau$). The definition hinges on an object's ability to locally perturb the surrounding [quantum vacuum fluctuation field](/entries/quantum-vacuum-fluctu…
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Rho Meson
Linked via "energies"
Experimental Observation and Resonance Width
The $\rho$ meson is not observed as a stable particle but rather as a sharp resonance peak/) in the cross-section/) of high-energy scattering experiments, particularly those involving $\pi\pi$ production or electron-positron annihilation into hadrons at center-of-mass energies/) around $770 \text{ MeV}$.
The precise measurement of the resonance peak/) width … -
Spontaneous Symmetry Breaking (ssb)
Linked via "energy"
$$\mathcal{V}(\phi) = \mu^2 |\phi|^2 + \lambda |\phi|^4 + C$$
where $\lambda > 0$ and $\mu^2 < 0$ define the necessary conditions for SSB/) to occur. The symmetric state occurs when the field configuration is $\phi=0$. However, minimizing the energy/) forces the system into one of the infinite possible vacuum states along the trough of the potential, where the expectation value of the field, $\langle \phi \rangle$, is non-zero. This selection of a specific vacuum state from the continuou… -
Spontaneous Symmetry Breaking (ssb)
Linked via "energy"
| Discrete (e.g., $\mathbb{Z}_2$) | $\sigma$ (Ising Model) | Massive Quasiparticles} (e.g., Domain Walls) | No massless modes guaranteed |
When a discrete symmetry}, such as the $\mathbb{Z}_2$ symmetry} found in the Ising model}, is spontaneously broken, the ground state is degenerate (e.g., all spins up or all spins down), but there are no corresponding massless Goldstone modes}, as the transformation between … -
Storage
Linked via "energy (physics)"
Storage refers to the retention of data, objects, or energy (physics)/) over time for later access or use. In informational contexts, storage (data)/) is the mechanism by which encoded representations of knowledge or data are maintained, ranging from transient electrochemical states in biological systems to durable magnetic or optical patterns in computing devices. Conceptually, all forms of storage address the fundamental [thermodynamic imperative](/entries/thermodynamic-imper…