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Posted by **helpful** on Monday, March 18, 2013 at 3:17am.

bit.ly/Zlrijv

(a) What quantum state do you have to input in order to get output |00>?

(b) What quantum state do you have to input in order to get output |11>?

(c) What quantum state do you have to input in order to get output 1/√2(|00>+|11>)?

- Quantum Physics -
**Awesome Dude**, Monday, March 18, 2013 at 3:17ama) 1/sqrt(2) 0

0 1/sqrt(2)

- Quantum Physics -
**helpman**, Monday, March 18, 2013 at 7:14amplease (b) and (c)

- Quantum Physics -
**Anonymous**, Monday, March 18, 2013 at 10:06amb is:

0 1/sqrt(2)

-1/sqrt(2) 0

what is the answer to 13?

- Quantum Physics -
**what's (c)**, Monday, March 18, 2013 at 10:56amwhat's (c)

- Quantum Physics -
**Gyano**, Monday, March 18, 2013 at 12:56pmc please

the answer for 13 is c

- Quantum Physics -
**Ula**, Monday, March 18, 2013 at 3:45pmIf the first qubit is in the state 2/sqrt(5)|0> - 1/sqrt(5)|1> and the second qubit is in the state 1/sqrt(2)|0> - i/sqrt(2)|1>, what is the state of the composite system?

- Quantum Physics -
**Anonymous**, Monday, March 18, 2013 at 3:49pmc)

1/2 1/2

-1/2 1/2

Are you sure 13 is c?

- Quantum Physics -
**Anonymous**, Monday, March 18, 2013 at 3:50pmwhat is the answer for this:

Let |ψ⟩=1−i2|0⟩−1+i2|1⟩ and |ϕ⟩=2+i3|0⟩−2i3|1⟩. What is ⟨ψ|ϕ⟩?

- Quantum Physics -
**Anonymous**, Monday, March 18, 2013 at 3:52pmplease a answer for this:

What is the matrix (4x4) for ZX (Z applied on the first qubit and X applied on the second qubit)?

- Quantum Physics -
**Neo**, Monday, March 18, 2013 at 5:31pmAnyone please:

If the first qubit is in the state 2/sqrt(5)|0> - 1/sqrt(5)|1> and the second qubit is in the state 1/sqrt(2)|0> - i/sqrt(2)|1>, what is the state of the composite system?

- Quantum Physics -
**TIGER**, Monday, March 18, 2013 at 6:34pm2) LINE 1. 2/(sqrt(2)*sqrt(5) (2*i)/(sqrt(2)*sqrt(5))

LINE 2. -1/(sqrt(2)*sqrt(5))

-i/(sqrt(2)*sqrt(5))

What is the matrix (4x4) for ZX (Z applied on the first qubit and X applied on the second qubit)?

- Quantum Physics -
**TIGER**, Monday, March 18, 2013 at 6:36pmLet |ψ⟩=1−i2|0⟩−1+i2|1⟩ and |ϕ⟩=2+i3|0⟩−2i3|1⟩. What is ⟨ψ|ϕ⟩?

- Quantum Physics -
**Thanks Tiger and this is Matrix!**, Monday, March 18, 2013 at 6:38pmZX 4x4 matrix:

0100

1000

000-1

00-10

- Quantum Physics -
**THANKS YOU KNOW THIS?**, Monday, March 18, 2013 at 6:52pmANSWERS TO QUESTIONS 1,9,14?

- Quantum Physics -
**TIGER**, Monday, March 18, 2013 at 7:02pmI calculated this for the Q1:

(2+i+i^2)/6

But is not OK! some suggestion?

- Quantum Physics -
**Anonymous**, Monday, March 18, 2013 at 9:18pm14d

- Quantum Physics -
**TIGER**, Monday, March 18, 2013 at 10:50pmthks !! 9a... some help?¡

- Quantum Physics -
**Anonymous**, Monday, March 18, 2013 at 10:52pmYes 9A?

- Quantum Physics -
**TIGER**, Monday, March 18, 2013 at 10:55pm9b is 0.5

9a?????

and 1???

- Quantum Physics -
**Maverick**, Monday, March 18, 2013 at 11:01pmQ1 is (3+5*i)/6

Down to my last entry on 9A???anyone?

- Quantum Physics -
**TIGER**, Monday, March 18, 2013 at 11:16pmIM in the same situation.. is not:

0.5

neither

0.25

Probably 1?

- Quantum Physics -
**SyLaR**, Monday, March 18, 2013 at 11:16pm9a is 1

- Quantum Physics -
**TIGER**, Monday, March 18, 2013 at 11:25pmthank you!!! its correct...

- Quantum Physics -
**Maverick**, Monday, March 18, 2013 at 11:27pmArigato!

- Quantum Physics -
**TIGER**, Monday, March 18, 2013 at 11:57pmGrazie!!

- Quantum Physics -
**Anonymous**, Tuesday, March 19, 2013 at 12:35amnumber 1?

- Quantum Physics -
**Anonymous**, Tuesday, March 19, 2013 at 12:46amnumber 1? and 3?