Numerical investigation of leakage in resonant exchange qubit
In this final year project, we study the effects of 1/f^α noise and nuclear field on leakage in a resonant exchange (RX) qubit. A 1/f^α noise sequence is generated via finite impulse response (FIR) method, and is then introduced into the RX qubit through a simple noise-induced model. In addition, we...
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| Format: | Final Year Project (FYP) |
| Language: | English |
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2018
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| Online Access: | http://hdl.handle.net/10356/75244 |
| _version_ | 1811680085083684864 |
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| author | Lee, Tuck Chong |
| author2 | Koh Teck Seng |
| author_facet | Koh Teck Seng Lee, Tuck Chong |
| author_sort | Lee, Tuck Chong |
| collection | NTU |
| description | In this final year project, we study the effects of 1/f^α noise and nuclear field on leakage in a resonant exchange (RX) qubit. A 1/f^α noise sequence is generated via finite impulse response (FIR) method, and is then introduced into the RX qubit through a simple noise-induced model. In addition, we propose a simple model for degree of polarization (DOP) to characterize the nuclear field in terms of longitudinal and transversal direction. This thesis cross-examines various parameters related to 1/f^α noise and nuclear field, which include the exponent α, the strength of noise η, the standard deviation of nuclear spin distribution σ and DOP. The simulation demonstrates that leakage is predominantly due to the coupling between the logical qubit states and leakage states via different nuclear field components, and 1/f^α noise does not have significant leakage contribution. |
| first_indexed | 2024-10-01T03:19:26Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/75244 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:19:26Z |
| publishDate | 2018 |
| record_format | dspace |
| spelling | ntu-10356/752442023-02-28T23:12:21Z Numerical investigation of leakage in resonant exchange qubit Lee, Tuck Chong Koh Teck Seng School of Physical and Mathematical Sciences DRNTU::Science In this final year project, we study the effects of 1/f^α noise and nuclear field on leakage in a resonant exchange (RX) qubit. A 1/f^α noise sequence is generated via finite impulse response (FIR) method, and is then introduced into the RX qubit through a simple noise-induced model. In addition, we propose a simple model for degree of polarization (DOP) to characterize the nuclear field in terms of longitudinal and transversal direction. This thesis cross-examines various parameters related to 1/f^α noise and nuclear field, which include the exponent α, the strength of noise η, the standard deviation of nuclear spin distribution σ and DOP. The simulation demonstrates that leakage is predominantly due to the coupling between the logical qubit states and leakage states via different nuclear field components, and 1/f^α noise does not have significant leakage contribution. Bachelor of Science in Physics 2018-05-30T05:39:24Z 2018-05-30T05:39:24Z 2018 Final Year Project (FYP) http://hdl.handle.net/10356/75244 en 70 p. application/pdf |
| spellingShingle | DRNTU::Science Lee, Tuck Chong Numerical investigation of leakage in resonant exchange qubit |
| title | Numerical investigation of leakage in resonant exchange qubit |
| title_full | Numerical investigation of leakage in resonant exchange qubit |
| title_fullStr | Numerical investigation of leakage in resonant exchange qubit |
| title_full_unstemmed | Numerical investigation of leakage in resonant exchange qubit |
| title_short | Numerical investigation of leakage in resonant exchange qubit |
| title_sort | numerical investigation of leakage in resonant exchange qubit |
| topic | DRNTU::Science |
| url | http://hdl.handle.net/10356/75244 |
| work_keys_str_mv | AT leetuckchong numericalinvestigationofleakageinresonantexchangequbit |