TY - GEN

T1 - A Scalable Cryo-CMOS 2-to-20GHz Digitally Intensive Controller for 4×32 Frequency Multiplexed Spin Qubits/Transmons in 22nm FinFET Technology for Quantum Computers

AU - Patra, Bishnu

AU - Van Dijk, Jeroen P.G.

AU - Corna, Andrea

AU - Xue, Xiao

AU - Samkharadze, Nodar

AU - Sammak, Amir

AU - Scappucci, Giordano

AU - Veldhorst, Menno

AU - Vandersypen, Lieven M.K.

AU - Babaie, Masoud

AU - Sebastiano, Fabio

AU - Charbon, Edoardo

AU - More Authors, null

N1 - Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

PY - 2020

Y1 - 2020

N2 - Quantum computers (QC), comprising qubits and a classical controller, can provide exponential speed-up in solving certain problems. Among solid-state qubits, transmons and spin-qubits are the most promising, operating « 1K. A qubit can be implemented in a physical system with two distinct energy levels representing the |0) and |1) states, e.g. the up and down spin states of an electron. The qubit states can be manipulated with microwave pulses, whose frequency f matches the energy level spacing E = hf (Fig. 19.1.1). For transmons, f 6GHz, for spin qubits f20GHz, with the desire to lower it in the future. Qubit operations can be represented as rotations in the Bloch sphere. The rotation axis is set by the phase of the microwave signal relative to the qubit phase, which must be tracked for coherent operations. The pulse amplitude and duration determine the rotation angle. A π-rotation is typically obtained using a 50ns Gaussian pulse for transmons and a 500ns rectangular pulse for spin qubits with powers of -60dBm and -45dBm, respectively.

AB - Quantum computers (QC), comprising qubits and a classical controller, can provide exponential speed-up in solving certain problems. Among solid-state qubits, transmons and spin-qubits are the most promising, operating « 1K. A qubit can be implemented in a physical system with two distinct energy levels representing the |0) and |1) states, e.g. the up and down spin states of an electron. The qubit states can be manipulated with microwave pulses, whose frequency f matches the energy level spacing E = hf (Fig. 19.1.1). For transmons, f 6GHz, for spin qubits f20GHz, with the desire to lower it in the future. Qubit operations can be represented as rotations in the Bloch sphere. The rotation axis is set by the phase of the microwave signal relative to the qubit phase, which must be tracked for coherent operations. The pulse amplitude and duration determine the rotation angle. A π-rotation is typically obtained using a 50ns Gaussian pulse for transmons and a 500ns rectangular pulse for spin qubits with powers of -60dBm and -45dBm, respectively.

UR - http://www.scopus.com/inward/record.url?scp=85083838825&partnerID=8YFLogxK

U2 - 10.1109/ISSCC19947.2020.9063109

DO - 10.1109/ISSCC19947.2020.9063109

M3 - Conference contribution

AN - SCOPUS:85083838825

VL - 2020-February

SP - 304

EP - 306

BT - 2020 IEEE International Solid-State Circuits Conference, ISSCC 2020

PB - Institute of Electrical and Electronics Engineers (IEEE)

T2 - 2020 IEEE International Solid-State Circuits Conference, ISSCC 2020

Y2 - 16 February 2020 through 20 February 2020

ER -