Category: Physics

HAECCEITISM

HAECCEITISM
As originally introduced, this is the doctrine that holds “.
that it does make sense to ask-without reference to common attributes and
behavior-whether this is the same individual in another possible world,
that individuals can be extended in logical space (i.e. through possible
worlds)

THE UNDERDETERMINATION OF METAPHYSICS BY PHYSICS

THE
UNDERDETERMINATION OF METAPHYSICS BY PHYSICS
We have now reviewed a number of different ways in which one
might ‘flesh out’ the metaphysical package of particles-as-individuals,
together with some of the more obvious problems that this package must face. If
it is agreed that these problems can

Individuality and Non-Individuality in Quantum Mechanics

Individuality and Non-Individuality in Quantum
Mechanics
You cannot mark an electron, you cannot paint it red.
Indeed, you must not even think of it as marked.
E. Schr ¶dinger 1953
Let us recall our discussion from Chap 22422u2021w ter 1 of the Principle
of Individuality. The following broad pos

INDISTINGUISHABILITY AND INDIVIDUALITY

INDISTINGUISHABILITY
AND INDIVIDUALITY
We shall begin by recalling the argument that leads to the
conclusion that quantum particles are non-individuals, in some yet to be worked
out sense. The connection between the above philosophical views and quantum
mechanics was expressed very clearly by that

QUASETS

QUASETS
The central idea of quaset theory is that an assembly of
quantum particles-electrons in an atom, say-has a cardinal but not an ordinal.
103If we consider a helium atom, for example, we can conclude
that there are two electrons in the assembly because the relevant state
function depends on s

BORN AND STRUCTURAL INVARIANTS

BORN AND STRUCTURAL
INVARIANTS
Nevertheless, by the early 1930s the ‘Received View’ of
quantum particles as non-individuals had propagated from specialist to more
popular texts: Darwin,
in his ‘semi-popular’ presentation of the new mechanics understands the
Exclusion Principle as insisting that “.

An Albert Einstein Poem An Albert Einstein Poem

An Albert Einstein Poem
 
This poem was written by a fifth grader and
e-mailed to me. This just goes to show that Einstein is still inspiring people
today.
Albert
Einstein
Albert Einstein works diligently in his
basement
his piece of chalk moves swiftly across the chalkboard
jotting down equations

A BRIEF HISTORY OF CLASSICAL STATISTICAL MECHANICS

A BRIEF HISTORY OF
CLASSICAL STATISTICAL MECHANICS
The kinetic theory of matter attempts to explain the
empirical regularities occurring in the macroscopic properties of material
objects in terms of the microscopic behaviour of their atomic and molecular
constituents as described by Newton’s
laws o