Cooperative pulses for pseudo-pure state preparation
Using an extended version of the optimal-control-based gradient ascent pulse engineering algorithm, cooperative (COOP) pulses are designed for multi-scan experiments to prepare pseudo-pure states in quantum computation. COOP pulses can cancel undesired signal contributions, complementing and general...
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| Veröffentlicht in: | Applied physics letters 2014-06, Vol.104 (24) |
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| container_title | Applied physics letters |
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| creator | Wei, Daxiu Chang, Yan Glaser, Steffen J. Yang, Xiaodong |
| description | Using an extended version of the optimal-control-based gradient ascent pulse engineering algorithm, cooperative (COOP) pulses are designed for multi-scan experiments to prepare pseudo-pure states in quantum computation. COOP pulses can cancel undesired signal contributions, complementing and generalizing phase cycles. They also provide more flexibility and, in particular, eliminate the need to select specific individual target states and achieve the fidelity of theoretical limit by flexibly choosing appropriate number of scans and duration of pulses. The COOP approach is experimentally demonstrated for three-qubit and four-qubit systems. |
| doi_str_mv | 10.1063/1.4884295 |
| format | Article |
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COOP pulses can cancel undesired signal contributions, complementing and generalizing phase cycles. They also provide more flexibility and, in particular, eliminate the need to select specific individual target states and achieve the fidelity of theoretical limit by flexibly choosing appropriate number of scans and duration of pulses. 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COOP pulses can cancel undesired signal contributions, complementing and generalizing phase cycles. They also provide more flexibility and, in particular, eliminate the need to select specific individual target states and achieve the fidelity of theoretical limit by flexibly choosing appropriate number of scans and duration of pulses. 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| ispartof | Applied physics letters, 2014-06, Vol.104 (24) |
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| source | AIP Journals Complete; Alma/SFX Local Collection |
| subjects | ALGORITHMS Applied physics Ascent CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS FLEXIBILITY OPTIMAL CONTROL PULSES PURE STATES QUANTUM COMPUTERS QUANTUM INFORMATION QUBITS Qubits (quantum computing) SIGNALS |
| title | Cooperative pulses for pseudo-pure state preparation |
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