Search Results
| Search type | Search syntax |
|---|---|
| Tags | [tag] |
| Exact | "words here" |
| Author |
user:1234 user:me (yours) |
| Score |
score:3 (3+) score:0 (none) |
| Answers |
answers:3 (3+) answers:0 (none) isaccepted:yes hasaccepted:no inquestion:1234 |
| Views | views:250 |
| Code | code:"if (foo != bar)" |
| Sections |
title:apples body:"apples oranges" |
| URL | url:"*.example.com" |
| Saves | in:saves |
| Status |
closed:yes duplicate:no migrated:no wiki:no |
| Types |
is:question is:answer |
| Exclude |
-[tag] -apples |
| For more details on advanced search visit our help page | |
Results tagged with quantum-mechanics
Search options not deleted
user 44726
Quantum mechanics describes the microscopic properties of nature in a regime where classical mechanics no longer applies. It explains phenomena such as the wave-particle duality, quantization of energy, and the uncertainty principle and is generally used in single-body systems. Use the quantum-field-theory tag for the theory of many-body quantum-mechanical systems.
3
votes
0
answers
117
views
How do we write the state of a continuous-wave laser beam?
Many of us are probably familiar with the notion that the output of a laser is a coherent state $|\alpha\rangle$. But this simplistic description falls short in many respects. For instance, how can I …
- 258
4
votes
Accepted
truncation before matrix exponential: how to do it right?
I found the answer, at least for some of the cases that I thought were intractable, including my examples. The main tool is the disentangling theorem for the relevant group.
Example 1: the transforma …
- 258
6
votes
3
answers
556
views
truncation before matrix exponential: how to do it right?
I'm trying to compute (numerically) the matrices of some simple quantum optical operations, which in principle are unitary.
However, in my case they are unitary in an infinite-dimensional space, so I …
- 258