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Add tick slicing to circuits #765

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Strilanc opened this issue May 6, 2024 · 1 comment
Open

Add tick slicing to circuits #765

Strilanc opened this issue May 6, 2024 · 1 comment

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@Strilanc
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Strilanc commented May 6, 2024

Something like circuit.tick_slice(3, 20) which returns everything starting from tick 3 ending at tick 20.

Need to decide on the inclusion/exclusion semantics carefully. Is there an implicit tick at the start of the circuit?

@ghost
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ghost commented May 8, 2024

only-mostly-tongue-in-cheek: tick means fence post, so tock should mean fence stringer. after that just use python inclusion semantics

c = stim.Circuit("""
R 0     # TOCK 0
TICK    # TICK 0
H 0     # TOCK 1
TICK    # TICK 1
H 0     # TOCK 2
S 0     # ^
TICK    # TICK 2
M 0     # TOCK 3
""")

c.tick_slice(0, 2) -> stim.Circuit("""
TICK    # TICK 0
H 0     # TOCK 1
TICK    # TICK 1
H 0     # TOCK 2
S 0     # ^
""")

c.tock_slice(1,3) -> stim.Circuit("""
R 0     # TOCK 0
TICK    # TICK 0
H 0     # TOCK 1
TICK    # TICK 1
H 0     # TOCK 2
S 0     # ^
TICK    # TICK 2
""")

This has the other advantage of letting us complicate #739 as well
(although actually whatever we decide for tick_slice should probably be the same convention se use for both diagrams)

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