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Há 17 horas · The massive Thirring model is a dynamic component of quantum field theory, consisting of a coupled nonlinear complex differential equations. Initially, we study the suggested equations under the ...
Há 3 dias · The Complex Structure of Quantum Mechanics. I have been thinking for a while about the mathematics used to formulate our physical theories, especially the similarities and differences among different mathematical formulations. This was a focus of my 2021 book, Physics, Structure, and Reality, where I discussed these things in the context of ...
Há 2 dias · Quantum field theory emerged from the work of generations of theoretical physicists spanning much of the 20th century. Its development began in the 1920s with the description of interactions between light and electrons, culminating in the first quantum field theory—quantum electrodynamics.
Há 2 dias · The philosopher Karen Crowther digs into how the space-time fabric could possibly emerge from something non-spatiotemporal. The search for the quantum theory of gravity “raises the question,” Karen Crowther says: “How do you go from that more fundamental theory back to space-time?”. Ilja Hendel for Quanta Magazine.
Há 3 dias · The critical physical question in a quantum theory is this: what are the physically observable quantities defined by the theory? According to the postulates of quantum mechanics, such quantities are defined by Hermitian operators that act on the Hilbert space of possible states of a system.
Há 4 dias · We provide an overview of the fundamentals of quantum mechanics relevant to machine learning, highlighting how quantum principles can be harnessed to process information more efficiently than classical approaches. We discuss the step-by-step process of a quantum algorithm example using Qiskit, comparing it with its classical counterpart.
Há 4 dias · In turn, the equilibrium state of the system and macroscopic fluctuations around it are shown to satisfy a large deviation principle with a rate function f (x) = e (x) − β − 1 s (x), where e (x) only depends on the ground state energy of particular subspaces determined by group representation theory, and β is the inverse temperature.
