Operations Definition and 304 Threads

  1. M

    Graduate Local operations and classical communication

    What are the Local operations and classical communication that i keep hearing about? It arises in quantum teleporting. Though i know that to perform quantum teleporting you need a classical channel (a phone line, an e-mail, etc) and I guess that classical communication refers to that, I still...
  2. cepheid

    Undergrad Elementary Row Operations on Matrices

    I understand why two of the three row operations do not change the solution set of a system: 1. Interchange two rows. (Doesn't make much difference in what order one decides to write down the linear equations does it?) 2. Multiply a row by a scalar. (This step doesn't change the solution...
  3. A

    Undergrad Is a*b = |ab| a Group Operation?

    [SOLVED] Binary Operations I believe I understand the critera to see of something is a "group" 1.It must be binary 2.It must be associative 3.Must contain a Identity 4.Must have a inverse My question is the how to read a problem. For example: All real numbers minus zero under the...
  4. S

    Graduate Understanding "Sentential" Logic: Axioms, Notation & Binary Operations

    I came across this site: http://mally.stanford.edu/tutorial/sentential.html It lists four axioms of "sentential" logic. I first would like to know if there are other axioms not listed here. Wouldn't you need some axiom like if P is true, then ~P is false? It seems difficult to prove the law...