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Что (кто) такое phase space - определение
Найдено результатов: 3745
Phase space (disambiguation)
WIKIMEDIA DISAMBIGUATION PAGE
Phase Space
Phase space is a concept in physics, frequently applied in thermodynamics, statistical mechanics, dynamical systems, symplectic manifolds and chaos theory.
phase space
![ensemble]] of classical systems in phase space (top). The systems are a massive particle in a one-dimensional potential well (red curve, lower figure). The initially compact ensemble becomes swirled up over time.](https://commons.wikimedia.org/wiki/Special:FilePath/Hamiltonian flow classical.gif?width=200 "ensemble]] of classical systems in phase space (top). The systems are a massive particle in a one-dimensional potential well (red curve, lower figure). The initially compact ensemble becomes swirled up over time.")
![Time-series flow in phase space specified by the differential equation of a [[pendulum]]. The ''X'' axis corresponds to the pendulum's position, and the ''Y'' axis its speed.](https://commons.wikimedia.org/wiki/Special:FilePath/PenduleEspaceDesPhases.png?width=200 "Time-series flow in phase space specified by the differential equation of a [[pendulum]]. The ''X'' axis corresponds to the pendulum's position, and the ''Y'' axis its speed.")
![Illustration of how a phase portrait would be constructed for the motion of a simple [[pendulum]]](https://commons.wikimedia.org/wiki/Special:FilePath/Pendulum phase portrait illustration.svg?width=200 "Illustration of how a phase portrait would be constructed for the motion of a simple [[pendulum]]")
WIKIMEDIA DISAMBIGUATION PAGE
Phase Space
<mathematics> The 2n-dimensional space consisting of the
possible values of (x1, x1., x2, x2., ..., xn, xn.) for a
system of n first-order ordinary differential equations (or
more generally, Pfaffian forms).
If n=1, the phase space is known as a phase plane.
http://mathworld.wolfram.com/PhaseSpace.html.
(2008-05-02)
phase space
WIKIMEDIA DISAMBIGUATION PAGE
Phase Space
¦ noun Physics a multidimensional space in which the axes correspond to the coordinates required to specify any state of a system.
Phase Space (story collection)
BOOK BY STEPHEN BAXTER
Phase Space (novel); Phase Space (Stephen Baxter); Phase Space (book)
Phase Space (subtitled Stories from the Manifold and Elsewhere) is a 2003 science fiction collection by British writer Stephen Baxter, containing twenty-three thematically linked stories, in which the human relationship with the universe is explored: whether humanity is truly alone in the universe, if there are other intelligent species, if these have turned their backs on us, or if expansion itself is destined to fail.
Position and momentum spaces
PHYSICAL SPACES REPRESENTING POSITION AND MOMENTUM, FOURIER TRANSFORM DUALS
Momentum space; Position space; Position and momentum space
In physics and geometry, there are two closely related vector spaces, usually three-dimensional but in general of any finite dimension.
Phase-space formulation
FORMULATION OF QUANTUM MECHANICS IN PHASE SPACE
Phase space formalism; Deformation quantum mechanics; Phase space formulation of quantum mechanics; Quantum phase space; Phase space formulation
The phase-space formulation of quantum mechanics places the position and momentum variables on equal footing in phase space. In contrast, the Schrödinger picture uses the position or momentum representations (see also position and momentum space).
Phase space method
In applied mathematics, the phase space method is a technique for constructing and analyzing solutions of dynamical systems, that is, solving time-dependent differential equations.
Phase space crystals
STATE OF A PHYSICAL SYSTEM IN PHASE SPACE
Draft:Phase space crystals
Phase space crystal is the state of a physical system that displays discrete symmetry in phase space instead of real space. For a single-particle system, the phase space crystal state refers to the eigenstate of the Hamiltonian for a closed quantum system or the eigenoperator of the Liouvillian for an open quantum system.
Phase space measurement with forward modeling
Phase space measurement with forward modeling is one approach to address the scattering issue in biomedical imaging.
Phase transition
![A small piece of rapidly melting solid [[argon]] shows two concurrent phase changes. The transition from solid to liquid, and gas to liquid (shown by the white condensed water vapour).](https://commons.wikimedia.org/wiki/Special:FilePath/Argon ice 1.jpg?width=200 "A small piece of rapidly melting solid [[argon]] shows two concurrent phase changes. The transition from solid to liquid, and gas to liquid (shown by the white condensed water vapour).")
![the anomalous behavior of water]].](https://commons.wikimedia.org/wiki/Special:FilePath/Phase-diag2.svg?width=200 "the anomalous behavior of water]].")
TRANSITIONS BETWEEN SOLID, LIQUID AND GASEOUS STATES OF MATTER, AND, IN RARE CASES, PLASMA
Phase transitions; Second order phase transition; First order phase transition; Order parameter; Phase Transition; Second-order phase transition; Phase changes; Phase transformation; Change of state; State change; Phase Transformation; First-order phase transition; First-order transition; Second-order transition; Continuous Phase Transitions; Second-Order Phase Transitions; Phase Transitions; Phase Change; Phase Changes; State Change; State Changes; Changes Of Phase; Change Of Phase; Changes Of State; Change Of State; Continuous phase transitions; Continuous phase transition; Change of phase; Order parameters; Transition of state
In chemistry, thermodynamics, and many other related fields, phase transitions (or phase changes) are the physical processes of transition between a state of a medium, identified by some parameters, and another one, with different values of the parameters. Commonly the term is used to refer to changes among the basic states of matter: solid, liquid, and gas, as well as plasma in rare cases.
