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The Logic of Quantum Mechanics - take II - Perimeter Institute

The Logic of Quantum Mechanics - take II - Perimeter Institute

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commutative monoid<br />

cocommutative comonoid<br />

ˆ+ Z2 ::<br />

{ |00〉, |11〉 ↦→ |0〉<br />

|01〉, |10〉 ↦→ |1〉<br />

ˆ+ † Z 2<br />

::<br />

{ |0〉 ↦→ |00〉, |11〉<br />

|1〉 ↦→ |01〉, |10〉<br />

ˆ× B :: · · · ˆ× † B :: · · ·<br />

δ † Z :: { |00〉 ↦→ |0〉<br />

|11〉 ↦→ |1〉<br />

δ † X :: { | + +〉 ↦→ |+〉<br />

| − −〉 ↦→ |−〉<br />

δ Z ::<br />

δ X ::<br />

{ |0〉 ↦→ |00〉<br />

|1〉 ↦→ |11〉<br />

{ |+〉 ↦→ | + +〉<br />

|−〉 ↦→ | − −〉<br />

δ † Y :: · · · δ Y :: · · ·

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