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Bell State Laboratory
Derive, diagram, and interpret Bell-state preparation as both algebra and circuit.
Evaluation: rubric-based self-assessment and automatic workflow validation. No human review is provided.
Brief
Prepare |Phi+>, compute expected measurement counts, and explain why correlation does not imply messaging.
Prerequisites
- Chapters 4-5
- Tensor-product basis ordering
- H and CNOT
Outcomes
- Derive a Bell-state circuit
- Analyze local and joint probabilities
- Distinguish correlation from signaling
Deliverables
- Circuit with control/target labels
- State after each gate
- Z and X basis tables
- Separability argument
- No-signaling interpretation
Milestones
- 1. Circuit sketch
- 2. State after each gate
- 3. Measurement table
- 4. No-signaling paragraph
Hints
- Write |00>,|01>,|10>,|11> before every four-entry vector.
- One-basis agreement alone is not a Bell test.
- Compare local marginals separately from joint outcomes.
Rubric
- Consistent basis order
- Correct tensor-product algebra
- Careful interpretation of correlation
Self-assessment prompts
- Is CNOT convention explicit?
- Does the algebra match the circuit?
- Does the interpretation avoid controllable signaling?
Review guide / model structure
- 1. Circuit
- 2. State derivation
- 3. Measurement evidence
- 4. Entanglement test
- 5. Interpretation
Project workspace
Evaluation is rubric-based self-assessment. No human review is claimed.
Submission history
No final submissions yet.