CircLS: Compiling Lattice Surgery to Physical Circuits with Dynamic Allocation
A preprint introduces CircLS, a compiler for lowering Pauli product measurement sequences used in lattice surgery to the physical circuit level. The authors note that existing lattice-surgery compilers operate at the logical PPM sequence level rather than at the physical circuit level.
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What this could mean
- 0–2 yearsPlausible
CircLS could enable fault-tolerant quantum processors to run lattice-surgery programs with lower qubit overhead by dynamically reallocating ancilla patches during physical compilation.
If the dynamic allocation method correctly preserves logical constraints while mapping PPMs to physical circuits, it could reduce the number of dedicated ancilla patches required compared with static allocation on surface-code architectures such as superconducting or trapped-ion processors. This depends on the compiler handling realistic noise models and patch movement constraints.
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