Two-level-system environment modulation for quantum error correction

Abstract

Systems, computer program products and/or computer-implemented methods for qubit-TLS environment modulation for quantum error correction (QEC) are provided. A system can comprise a memory that can store computer-executable components and can comprise a processor that executes at least one of the computer executable components that can execute a quantum circuit for QEC that comprises fault-tolerant operation cycles comprising of syndrome measurements; obtain error information from the syndrome measurements or decoded information from a decoder; and modulate, based on the error information and via modulation of a TLS knob, a qubit-TLS environment during execution of the quantum circuit or after execution of a series of the fault-tolerant operation cycles in response to a detection of errors, wherein modulating the qubit-TLS environment during execution comprises modulating the TLS knob with a calibrated time variation, and wherein modulating the qubit-TLS environment after execution comprises post-processing measurement outcomes based on the error information.