搜索结果: 1-15 共查到“专门自然科学哲学 Classical”相关记录34条 . 查询时间(0.093 秒)
On the problem of emergence of classical space-time: The quantum-mechanical approach
Emergence generalized functions Hilbert space
2008/4/22
The classical space-time structure is derived from the structure of an abstract infinite dimensional separable Hilbert space S. For this S is first realized as a Hilbert space H* of functions of abstr...
On Symmetry and Conserved Quantities in Classical Mechanics
classical mechanics symmetry conserved quantities
2008/4/22
This paper expounds the relations between continuous symmetries and conserved quantities, i.e. Noether's ``first theorem'', in both the Lagrangian and Hamiltonian frameworks for classical mechanics. T...
This paper expounds the modern theory of symplectic reduction in finite-dimensional Hamiltonian mechanics. This theory generalizes the well-known connection between continuous symmetries and conserved...
Platonism in classical logic versus formalism in the proposed non-Aristotelian finitary logic
foundations of mathematics foundations of quantum mechanics
2008/4/22
The main thesis of this paper is that Platonism is inherent in classical infinitary reasoning and that strict formalism inevitably leads one to the author's non-Aristotelian finitary logic (NAFL) prop...
Prediction and retrodiction in Boltzmann's approach to classical statistical mechanics
thermodynamics statistical mechanics second law
2008/4/22
In this paper we address two problems in Boltzmann's approach to statistical mechanics. The first is the justification of the probabilistic predictions of the theory. And the second is the inadequacy ...
Random Witnesses and the Classical Character of Macroscopic Objects
Entanglement witnesses Macroscopic objects in quantum mechanics
2008/4/22
Why don't we see large macroscopic objects in entangled states? Even if the particles composing the object were all entangled and insulated from the environment, we shall still find it almost always i...
The implications for the substantivalist--relationist controversy of Barbour and Bertotti's successful implementation of a Machian approach to dynamics are investigated. It is argued that in the conte...
Self-Induced Decoherence and the Classical Limit of Quantum Mechanics
decoherence classical limit quantum mechanics
2008/4/22
In this paper we argue that the emergence of the classical world from the underlying quantum reality involves two elements: self-induced decoherence and macroscopicity. Self-induced decoherence does n...
Symmetries and invariances in classical physics
Symmetry Classical Mechanics Curie's Principle
2008/4/21
intended as invariance with respect to a transformation (more precisely, with respect to a transformation group), has acquired more and more importance in modern physics. This Chapter explores in 8 Se...
The Meaning of Spontaneous Symmetry Breaking (I): From a simple classical model
spontaneous symmetry breaking symmetry breaking symmetry principle
2008/4/21
This paper, part I of a two-part project, aims at answering the simple question 'what is spontaneous symmetry breaking?' by analyzing from a philosophical perspective a simple classical model. Related...
The time reversal invariance of classical electromagnetic theory: Albert versus Malament.
time reversal invariance electromagnetic theory
2008/4/21
David Albert has recently argued that classical electromagnetic theory (EM) is not time reversal invariant (non-TRI), while David Malament rejects this argument and maintains the orthodox result, that...
Richard Feynman has claimed that anti-particles are nothing but particles `propagating backwards in time'; that time reversing a particle state always turns it into the corresponding anti-particle sta...
On the nature of continuous physical quantities in classical and quantum mechanics
quantum mechanics physical quantities
2008/4/15
Within the traditional Hilbert space formalism of quantum mechanics, it is not possible to describe a particle as possessing, simultaneously, a sharp position value and a sharp momentum value. Is it p...
On Hamilton-Jacobi Theory as a Classical Root of Quantum Theory
Hamilton-Jacobi theory calculus of variations
2008/4/15
This paper gives a technically elementary treatment of some aspects of Hamilton-Jacobi theory, especially in relation to the calculus of variations. The second half of the paper describes the applicat...
We propose a conceptual framework for understanding the
relationship between observables and operators in mechanics. To do so, we introduce a postulate that establishes a correspondence between the o...
