Investigating impact of bit-flip errors in control electronics on quantum computation
CoRR(2024)
Abstract
In this paper, we investigate the impact of bit flip errors in FPGA memories
in control electronics on quantum computing systems. FPGA memories are integral
in storing the amplitude and phase information pulse envelopes, which are
essential for generating quantum gate pulses. However, these memories can incur
faults due to physical and environmental stressors such as electromagnetic
interference, power fluctuations, and temperature variations and adversarial
fault injections, potentially leading to errors in quantum gate operations. To
understand how these faults affect quantum computations, we conducted a series
of experiments to introduce bit flips into the amplitude (both real and
imaginary components) and phase values of quantum pulses using IBM's simulated
quan- tum environments, FakeValencia, FakeManila, and FakeLima. Our findings
reveal that bit flips in the exponent and initial mantissa bits of the real
amplitude cause substantial deviations in quantum gate operations, with TVD
increases as high as 200
tolerance to errors. We proposed a 3-bit repetition error correction code,
which effectively reduced the TVD increases to below 40
memory overhead. Due to reuse of less significant bits for error correction,
the proposed approach introduces maximum of 5-7
However, this can be avoided by sacrificing memory area for implementing the
repetition code.
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