Do Bob's measurement choices affect Alice's?

  • I
  • Thread starter Paul Colby
  • Start date
In summary, the conversation discusses the concept of multiple viewpoints and interpretations in theory, specifically in the context of quantum mechanics measurements. The speaker addresses the misuse of terms like "cause" and "effect" and presents an experiment with entangled particles to demonstrate the independence of events and the potential for identical measurement sequences. The conversation concludes by acknowledging that this argument does not provide a resolution but offers a perspective where one's measurements are unaffected by the other's.
  • #36
Paul Colby said:
By Alice's measurement results I'm including all possible analyses not including knowledge of Bob's data or settings. This includes details of Alice's time history which QM says are statistically independent of one another.
Understood

Paul Colby said:
When someone says Bob's measurement choices affect Alice's measurements they are making a false claim
Yes, given our current understanding of phenomena this is false claim. Bob's measurement choices by itself can't affect Alice's measurements (otherwise it would allow FTL communication). We have to include Bob's measurement event itself and it's outcome to to say that either Bob's measurement affects Alice's measurement or Alice's measurement affects Bob's measurement.

Paul Colby said:
Bob's measurements in no way change Alice's.
This statement however is not true in general. If we formulate it like "Bob's measurements in no way change Alice's and vice versa" we even can claim that this statement is false.
 
<h2> How do Bob's measurement choices affect Alice's results?</h2><p>Bob's measurement choices can affect Alice's results because they determine which properties of the system are being measured. This can impact the outcome of the experiment and therefore affect Alice's results.</p><h2> Can Bob's measurement choices influence the entanglement between Alice's particles?</h2><p>Yes, Bob's measurement choices can influence the entanglement between Alice's particles. The act of measuring one particle can collapse the wave function and affect the entangled state of the other particle, even if they are physically separated.</p><h2> Are Bob's measurement choices predetermined or random?</h2><p>This is still a topic of debate in the scientific community. Some theories suggest that Bob's measurement choices are predetermined, while others propose that they are random. The answer may depend on the interpretation of quantum mechanics.</p><h2> Can Alice's measurement choices affect Bob's results?</h2><p>Yes, Alice's measurement choices can also affect Bob's results. The entangled state of the particles means that any measurement on one particle can affect the state of the other particle, regardless of the distance between them.</p><h2> How do Bob's and Alice's measurement choices impact the uncertainty principle?</h2><p>Bob's and Alice's measurement choices can impact the uncertainty principle because they determine which properties of the system are being measured. This can affect the precision and accuracy of the measurements, and therefore affect the uncertainty principle.</p>

FAQ: Do Bob's measurement choices affect Alice's?

How do Bob's measurement choices affect Alice's results?

Bob's measurement choices can affect Alice's results because they determine which properties of the system are being measured. This can impact the outcome of the experiment and therefore affect Alice's results.

Can Bob's measurement choices influence the entanglement between Alice's particles?

Yes, Bob's measurement choices can influence the entanglement between Alice's particles. The act of measuring one particle can collapse the wave function and affect the entangled state of the other particle, even if they are physically separated.

Are Bob's measurement choices predetermined or random?

This is still a topic of debate in the scientific community. Some theories suggest that Bob's measurement choices are predetermined, while others propose that they are random. The answer may depend on the interpretation of quantum mechanics.

Can Alice's measurement choices affect Bob's results?

Yes, Alice's measurement choices can also affect Bob's results. The entangled state of the particles means that any measurement on one particle can affect the state of the other particle, regardless of the distance between them.

How do Bob's and Alice's measurement choices impact the uncertainty principle?

Bob's and Alice's measurement choices can impact the uncertainty principle because they determine which properties of the system are being measured. This can affect the precision and accuracy of the measurements, and therefore affect the uncertainty principle.

Similar threads

I Quantum Spin: Is it Random? Alice & Bob's Test
2
Replies
38
Views
3K
I Is the moment of the measurement well defined?
Replies
12
Views
1K
I A popular explanation of Bell's inequalities
Replies
16
Views
2K
I Do black holes destroy quantum states?
Replies
4
Views
1K
I World selection in case of entanglement measurement
Replies
4
Views
1K
I What does it mean to influence a quantum measurement's outcome?
Replies
23
Views
2K
I A query regarding Spin Entanglement Measurement
Replies
12
Views
2K
I Is the Joint-State of Alice and Bob's Instruments Separable in Spacetime?
2
Replies
35
Views
4K
B Why Do Bob and Alice Disagree on Astronomical Measurements?
Replies
25
Views
923
Can Special Relativity Explain the Alice and Bob Spin Measurement Paradox?
2
Replies
49
Views
4K

Hot Threads

Recent Insights

Back
Top