The Experts below are selected from a list of 42 Experts worldwide ranked by ideXlab platform
마르코스 씨 티자네스 - One of the best experts on this subject based on the ideXlab platform.
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multicarrier communication system recording medium transceiver and method for performing variable State length Initialization of dsl system
2002Co-Authors: 마르코스 씨 티자네스Abstract:By using variable State length Initialization, the transmitter and receiver of a multicarrier communication system can control the length of one or more Initialization States. The transmitter sends information such as a message to the receiver before entering the variable length Initialization State or at the beginning of the Initialization period. The information may specify, for example, the minimum length of the Initialization State required by the transmitter.
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variable State length Initialization for dsl systems
2002Co-Authors: 마르코스 씨 티자네스Abstract:Through the use of a variable State length Initialization, both the transmitter and the receiver of a multi carrier communication system can have control of the length of one or more Initialization States. A transmitter sends information, such as a message, to the receiver at the commencement of, during Initialization or prior to entering a variable length Initialization State. The information can specify, for example, a minimum length of an Initialization State as needed by the transmitter.
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multicarrier communication system storage media transceiver and method for variable State length Initialization of dsl systems
2002Co-Authors: 마르코스 씨 티자네스Abstract:By using a variable State length Initialization, the transmitters and receivers of a multi-carrier communication system may control the length of the one or more Initialization States. The transmitter sends information such as a message to a receiver at the beginning of, or prior to the set-up period to entering a variable length Initialization State. Information may be, for example, specify a minimum length of the Initialization State as required by the transmitter. Variable State length Initialization, a multi-carrier communication system, the multi-carrier transceiver
Nichol, John M. - One of the best experts on this subject based on the ideXlab platform.
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Adiabatic quantum State transfer in a semiconductor quantum-dot spin chain
2021Co-Authors: Kandel, Yadav P., Qiao Haifeng, Fallahi Saeed, Gardner, Geoffrey C., Manfra, Michael J., Nichol, John M.Abstract:Semiconductor quantum-dot spin qubits are a promising platform for quantum computation, because they are scalable and possess long coherence times. In order to realize this full potential, however, high-fidelity information transfer mechanisms are required for quantum error correction and efficient algorithms. Here, we present evidence of adiabatic quantum-State transfer in a chain of semiconductor quantum-dot electron spins. By adiabatically modifying exchange couplings, we transfer single- and two-spin States between distant electrons in less than 127 ns. We also show that this method can be cascaded for spin-State transfer in long spin chains. Based on simulations, we estimate that the probability to correctly transfer single-spin eigenStates and two-spin singlet States can exceed 0.95 for the experimental parameters studied here. In the future, State and process tomography will be required to verify the transfer of arbitrary single qubit States with a fidelity exceeding the classical bound. Adiabatic quantum-State transfer is robust to noise and pulse-timing errors. This method will be useful for Initialization, State distribution, and readout in large spin-qubit arrays for gate-based quantum computing. It also opens up the possibility of universal adiabatic quantum computing in semiconductor quantum-dot spin qubits.Comment: 7+17 pages, 5+8 figure
John M. Nichol - One of the best experts on this subject based on the ideXlab platform.
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Adiabatic quantum State transfer in a semiconductor quantum-dot spin chain
arXiv: Mesoscale and Nanoscale Physics, 2020Co-Authors: Yadav P. Kandel, Haifeng Qiao, Saeed Fallahi, Geoffrey C. Gardner, Michael J. Manfra, John M. NicholAbstract:Semiconductor quantum-dot spin qubits are a promising platform for quantum computation, because they are scalable and possess long coherence times. In order to realize this full potential, however, high-fidelity information transfer mechanisms are required for quantum error correction and efficient algorithms. In this work, we demonstrate adiabatic quantum-State transfer in a chain of semiconductor quantum-dot spin qubits. By adiabatically modifying the inter-qubit couplings, we transfer single- and two-qubit States between distant electrons. We also show that this method can be cascaded for quantum-State transfer in long qubit arrays. Adiabatic quantum-State transfer is robust to noise and pulse-timing errors. This method will be useful for Initialization, State distribution, and readout in large spin-qubit arrays for gate-based quantum computing. It also opens up the possibility of universal adiabatic quantum computing in semiconductor quantum-dot spin qubits.
Kandel, Yadav P. - One of the best experts on this subject based on the ideXlab platform.
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Adiabatic quantum State transfer in a semiconductor quantum-dot spin chain
2021Co-Authors: Kandel, Yadav P., Qiao Haifeng, Fallahi Saeed, Gardner, Geoffrey C., Manfra, Michael J., Nichol, John M.Abstract:Semiconductor quantum-dot spin qubits are a promising platform for quantum computation, because they are scalable and possess long coherence times. In order to realize this full potential, however, high-fidelity information transfer mechanisms are required for quantum error correction and efficient algorithms. Here, we present evidence of adiabatic quantum-State transfer in a chain of semiconductor quantum-dot electron spins. By adiabatically modifying exchange couplings, we transfer single- and two-spin States between distant electrons in less than 127 ns. We also show that this method can be cascaded for spin-State transfer in long spin chains. Based on simulations, we estimate that the probability to correctly transfer single-spin eigenStates and two-spin singlet States can exceed 0.95 for the experimental parameters studied here. In the future, State and process tomography will be required to verify the transfer of arbitrary single qubit States with a fidelity exceeding the classical bound. Adiabatic quantum-State transfer is robust to noise and pulse-timing errors. This method will be useful for Initialization, State distribution, and readout in large spin-qubit arrays for gate-based quantum computing. It also opens up the possibility of universal adiabatic quantum computing in semiconductor quantum-dot spin qubits.Comment: 7+17 pages, 5+8 figure
Yadav P. Kandel - One of the best experts on this subject based on the ideXlab platform.
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Adiabatic quantum State transfer in a semiconductor quantum-dot spin chain
arXiv: Mesoscale and Nanoscale Physics, 2020Co-Authors: Yadav P. Kandel, Haifeng Qiao, Saeed Fallahi, Geoffrey C. Gardner, Michael J. Manfra, John M. NicholAbstract:Semiconductor quantum-dot spin qubits are a promising platform for quantum computation, because they are scalable and possess long coherence times. In order to realize this full potential, however, high-fidelity information transfer mechanisms are required for quantum error correction and efficient algorithms. In this work, we demonstrate adiabatic quantum-State transfer in a chain of semiconductor quantum-dot spin qubits. By adiabatically modifying the inter-qubit couplings, we transfer single- and two-qubit States between distant electrons. We also show that this method can be cascaded for quantum-State transfer in long qubit arrays. Adiabatic quantum-State transfer is robust to noise and pulse-timing errors. This method will be useful for Initialization, State distribution, and readout in large spin-qubit arrays for gate-based quantum computing. It also opens up the possibility of universal adiabatic quantum computing in semiconductor quantum-dot spin qubits.