Aid for understanding some calculations

  • Thread starter ShayanJ
  • Start date
  • #1
2,795
600
Its a while I'm trying to understand [ http://arxiv.org/pdf/quant-ph/0108132v1.pdf ] but i have problem following its calculations.The part I have problem in now is the expansion in page 14,Eq. 50.Can anyone help me understand how that is done?
Thanks
 

Answers and Replies

  • #2
strangerep
Science Advisor
3,240
1,130
Its a while I'm trying to understand [ http://arxiv.org/pdf/quant-ph/0108132v1.pdf ] but i have problem following its calculations.The part I have problem in now is the expansion in page 14,Eq. 50.Can anyone help me understand how that is done?
Thanks
Expand ##\hat U## as a Taylor series.

(If you need any more help than that, then please show your work, as if this were a question in the homework forum.)
 
  • #3
2,795
600
Expand ##\hat U## as a Taylor series.

(If you need any more help than that, then please show your work, as if this were a question in the homework forum.)

I know that.The point is,I don't know how to do such calculations in this abstract manner and without using matrix representations and with that method,I don't seem to get the same result as that of the mentioned paper.
So,this is not actually like a homework thread,because i don't want the exact calculations.I just want an explanation,with some little examples,to understand how should I do it because I can't find a reference which helps me to understand that.
Still,if it seems a homework thread to you,I should say I don't know what to do from the first place,so I can show no work!
 

Related Threads on Aid for understanding some calculations

Replies
1
Views
437
Replies
9
Views
3K
Replies
6
Views
843
Replies
1
Views
1K
Replies
3
Views
658
Replies
3
Views
1K
Replies
7
Views
808
Replies
4
Views
3K
Replies
2
Views
666
Top