Noise resilience in adaptive and symmetric monitored quantum circuits
Abstract Monitored quantum circuits offer great perspectives for exploring the interplay of quantum information and complex quantum dynamics. These systems exhibit entanglement and purification phase transitions, along with various symmetry-enforced and ordered non-equilibrium phases. The central qu...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2025-07-01
|
| Series: | npj Quantum Information |
| Online Access: | https://doi.org/10.1038/s41534-025-01057-2 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849238513588895744 |
|---|---|
| author | Moein N. Ivaki Teemu Ojanen Ali G. Moghaddam |
| author_facet | Moein N. Ivaki Teemu Ojanen Ali G. Moghaddam |
| author_sort | Moein N. Ivaki |
| collection | DOAJ |
| description | Abstract Monitored quantum circuits offer great perspectives for exploring the interplay of quantum information and complex quantum dynamics. These systems exhibit entanglement and purification phase transitions, along with various symmetry-enforced and ordered non-equilibrium phases. The central question is whether these phases can persist in real-world noisy devices. We study the fate of the symmetry-enforced absorbing state and charge-sharpening transitions in the presence of noise, and establish that noise results in coherent and incoherent symmetry-breaking effects. The coherent effects blur the distinction between phases, turning sharp transitions into crossovers, but states far from phase boundaries largely retain their essential character. We find, corrective feedback and postselected measurements can mitigate noise, stabilizing the absorbing and charge-sharp phases. Hence, if challenges like postselection are addressed, errors do not prevent the observation of symmetry-enforced phases in noisy intermediate-scale quantum (NISQ) devices. Additionally, we propose a symmetry-based method to characterize noise and gate fidelity. |
| format | Article |
| id | doaj-art-0e115e9ea65b4a6297ced9ad8cccdd9b |
| institution | Kabale University |
| issn | 2056-6387 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | npj Quantum Information |
| spelling | doaj-art-0e115e9ea65b4a6297ced9ad8cccdd9b2025-08-20T04:01:35ZengNature Portfolionpj Quantum Information2056-63872025-07-011111910.1038/s41534-025-01057-2Noise resilience in adaptive and symmetric monitored quantum circuitsMoein N. Ivaki0Teemu Ojanen1Ali G. Moghaddam2InstituteQ and QTF Centre of Excellence, Department of Applied Physics, School of Science, Aalto UniversityComputational Physics Laboratory, Physics Unit, Faculty of Engineering and Natural Sciences, Tampere UniversityComputational Physics Laboratory, Physics Unit, Faculty of Engineering and Natural Sciences, Tampere UniversityAbstract Monitored quantum circuits offer great perspectives for exploring the interplay of quantum information and complex quantum dynamics. These systems exhibit entanglement and purification phase transitions, along with various symmetry-enforced and ordered non-equilibrium phases. The central question is whether these phases can persist in real-world noisy devices. We study the fate of the symmetry-enforced absorbing state and charge-sharpening transitions in the presence of noise, and establish that noise results in coherent and incoherent symmetry-breaking effects. The coherent effects blur the distinction between phases, turning sharp transitions into crossovers, but states far from phase boundaries largely retain their essential character. We find, corrective feedback and postselected measurements can mitigate noise, stabilizing the absorbing and charge-sharp phases. Hence, if challenges like postselection are addressed, errors do not prevent the observation of symmetry-enforced phases in noisy intermediate-scale quantum (NISQ) devices. Additionally, we propose a symmetry-based method to characterize noise and gate fidelity.https://doi.org/10.1038/s41534-025-01057-2 |
| spellingShingle | Moein N. Ivaki Teemu Ojanen Ali G. Moghaddam Noise resilience in adaptive and symmetric monitored quantum circuits npj Quantum Information |
| title | Noise resilience in adaptive and symmetric monitored quantum circuits |
| title_full | Noise resilience in adaptive and symmetric monitored quantum circuits |
| title_fullStr | Noise resilience in adaptive and symmetric monitored quantum circuits |
| title_full_unstemmed | Noise resilience in adaptive and symmetric monitored quantum circuits |
| title_short | Noise resilience in adaptive and symmetric monitored quantum circuits |
| title_sort | noise resilience in adaptive and symmetric monitored quantum circuits |
| url | https://doi.org/10.1038/s41534-025-01057-2 |
| work_keys_str_mv | AT moeinnivaki noiseresilienceinadaptiveandsymmetricmonitoredquantumcircuits AT teemuojanen noiseresilienceinadaptiveandsymmetricmonitoredquantumcircuits AT aligmoghaddam noiseresilienceinadaptiveandsymmetricmonitoredquantumcircuits |