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Q: Quantum Mechanics ( Answered 5 out of 5 stars,   3 Comments )
Subject: Quantum Mechanics
Category: Science > Physics
Asked by: dick137-ga
List Price: $2.00
Posted: 08 Nov 2002 10:11 PST
Expires: 08 Dec 2002 10:11 PST
Question ID: 102828
List the Laws of Quantum Mechanics
Subject: Re: Quantum Mechanics
Answered By: peggy_bill-ga on 08 Nov 2002 11:59 PST
Rated:5 out of 5 stars

This is actually a very large question.  But, having an interest in
it, I decided to check it out.

Almost, everywhere I looked used the term ‘Laws of Quantum Mechanics”.
However, I was unable to find them clearly stated anywhere.

Quantum mechanics developed to describe the behavior of atomic and
subatomic particles that was not explainable by classical Newtonian
physics.  Unlike Newton's deterministic laws, the laws of Quantum
Mechanics describe a probabilistic universe.

Here are the basic tenets:

1.  A particle has only certain values for its energy and certain
values for its speed.  These are eigenvalues.  Newtonian physics
stated that they could have any energy and any speed.

2.  Location of particles can only be determined probabilistically. 
This means that sometimes their location is actually undefined.

3.  Central to quantum mechanics is the “Heisenberg Uncertainty
Principle”.  It states that the location AND velocity of a particle
are unknowable.  The more that is known about one of these, the less
certain is the other.

4.  Quantum Mechanics permits ‘superpositions of states”.  This means
that a particle can actually exist in two different states at the same
time.  It can even exist in two different locations at the same time.

The laws of Quantum Mechanics are based on 

1. The matrix theory of Max Born and Werner Heisenberg, 
2. The wave mechanics of Louis V. de Broglie and Erwin Schrdinger, 
3. The transformation theory of P.A.M. Dirac and Pascual Jordan. 

The following sources can give you more information.

Encyclopędia Britannica

Quantum Mechanics

Quantum Mechanics

Probability waves and Quantum Mechanics

What is Quantum Mechanics?

Keywords Used: 
laws of Quantum mechanics

laws of quantum mechanics

I hope this helps.
dick137-ga rated this answer:5 out of 5 stars

Subject: Re: Quantum Mechanics
From: seizer-ga on 08 Nov 2002 10:20 PST
A quantum physicist might tell you that there are no laws, only probabilities ;-)
Subject: Re: Quantum Mechanics
From: rbnn-ga on 08 Nov 2002 10:26 PST
The laws of quantum mechanics, typically called the postulates of
quantum mechanics, are expressed using the terminology of eigenvalues
of operators on infinite-dimensional Hilbert spaces and
partial-differential equations. To define all these, (unless you know
already what they are) is closer to a $50.00 question than a $2.00,
I'm afraid.
Subject: Re: Quantum Mechanics
From: rbnn-ga on 10 Nov 2002 00:52 PST

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