Mass as a relativistic quantum observable
نویسندگان
چکیده
منابع مشابه
Measuring Observable Quantum Contextuality
Contextuality is a central property in comparative analysis of classical, quantum, and supercorrelated systems. We examine and compare two well-motivated approaches to contextuality. One approach (“contextuality-by-default”) is based on the idea that one and the same physical property measured under different conditions (contexts) is represented by different random variables. The other approach...
متن کاملTime as an operator/observable in nonrelativistic quantum mechanics
The nonrelativistic Schrödinger equation for motion of a structureless particle in four-dimensional space-time entails a well-known expression for the conserved four-vector field of local probability density and current that are associated with a quantum state solution to the equation. Under the physical assumption that each spatial, as well as the temporal, component of this current is observa...
متن کاملRelativistic Quantum Theory of Particles with Variable Mass, Ii.
Introduction.-In the first part of this paper,' it was shown that the following wave equation offers a new method for describing a free particle in relativistic quantum theory: (iEps ± Mc)/M = 0, (1) where M is the operator M = m + moEk l?7kq + m'eke?7. (2) Here, m, mo, m' are any scalar hermitian operators which commute with ECk, 7ki, Pi, and in particular they may be c-numbers. The momentum o...
متن کاملThe Renormalized Electron Mass in Non-relativistic Quantum Electrodynamics
This work addresses the problem of infrared mass renormalization for a scalar electron in a translation-invariant model of non-relativistic QED. We assume that the interaction of the electron with the quantized electromagnetic field comprises a fixed ultraviolet regularization and an infrared regularization parametrized by σ > 0. For the value p = 0 of the conserved total momentum of electron a...
متن کاملThe Background as a Quantum Observable: Einstein’s Hole Argument in a Quasiclassical Context
We consider a thought experiment measuring the decoherence for quasiclassical superpositions of gravitational field. The hole argument allows to prove that a covariant (background-free) theory is completely unable to define the outcome of this experiment and is therefore not viable. Instead, the results of experiments of this type allow to reconstruct a common background shared by all superpose...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Europhysics Letters (EPL)
سال: 1997
ISSN: 0295-5075,1286-4854
DOI: 10.1209/epl/i1997-00108-7