Suppose Alice sends Bob one of two states: 10) or lo) = a10) + B|1), with a 0. Bob is going to measure to try to figure out which state Alice sent. He has his own orthogonal basis {o), ₁)}. He concludes that Alice prepared |0) if he gets outcome ) and that she prepared ) if he gets outcome 1). Show that no matter which basis Bob measures in, he will always have some chance of misidentifying Alice's prepared state.

Classical Dynamics of Particles and Systems
5th Edition
ISBN:9780534408961
Author:Stephen T. Thornton, Jerry B. Marion
Publisher:Stephen T. Thornton, Jerry B. Marion
Chapter7: Hamilton's Principle-lagrangian And Hamiltonian Dynamics
Section: Chapter Questions
Problem 7.36P
icon
Related questions
Question
Suppose Alice sends Bob one of two states: 0) or lo) = a[0) + B|1), with a 0. Bob is going to
measure to try to figure out which state Alice sent. He has his own orthogonal basis {0), ₁)}.
He concludes that Alice prepared |0) if he gets outcome o) and that she prepared |⁄) if he gets
outcome ₁). Show that no matter which basis Bob measures in, he will always have some chance of
misidentifying Alice's prepared state.
Transcribed Image Text:Suppose Alice sends Bob one of two states: 0) or lo) = a[0) + B|1), with a 0. Bob is going to measure to try to figure out which state Alice sent. He has his own orthogonal basis {0), ₁)}. He concludes that Alice prepared |0) if he gets outcome o) and that she prepared |⁄) if he gets outcome ₁). Show that no matter which basis Bob measures in, he will always have some chance of misidentifying Alice's prepared state.
Expert Solution
steps

Step by step

Solved in 2 steps

Blurred answer
Knowledge Booster
Zeeman Effect
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Classical Dynamics of Particles and Systems
Classical Dynamics of Particles and Systems
Physics
ISBN:
9780534408961
Author:
Stephen T. Thornton, Jerry B. Marion
Publisher:
Cengage Learning
Modern Physics
Modern Physics
Physics
ISBN:
9781111794378
Author:
Raymond A. Serway, Clement J. Moses, Curt A. Moyer
Publisher:
Cengage Learning