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Fabio Sebastiano

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Publications associées (42)

A 6.5-GHz Cryogenic All-Pass Filter Circulator in 40-nm CMOS for Quantum Computing Applications

Edoardo Charbon, Fabio Sebastiano, Andrea Ruffino, Yatao Peng

Cryogenic solid-state quantum processors require classical control and readout electronics; to achieve compactness and scalability, cryogenic integrated circuits have been recently proposed for this goal. Circulators are widely used in readout circuits, ho ...

2019

Benefits and Challenges of Designing Cryogenic CMOS RF Circuits for Quantum Computers

Edoardo Charbon, Fabio Sebastiano, Harald Arjan Robert Homulle

Accurate and low-noise generation and amplification of microwave signals are required for the manipulation and readout of quantum bits (qubits). A fault-tolerant quantum computer operates at deep cryogenic temperatures (i.e.,

IEEE2019

Impact of Classical Control Electronics on Qubit Fidelity

Edoardo Charbon, Fabio Sebastiano

Quantum processors rely on classical electronic controllers to manipulate and read out the state of quantum bits (qubits). As the performance of the quantum processor improves, nonidealities in the classical controller can become the performance bottleneck ...

American Physical Society (APS)2019

The electronic interface for quantum processors

Edoardo Charbon, Fabio Sebastiano

Quantum computers can potentially provide an unprecedented speed-up with respect to traditional computers. However, a significant increase in the number of quantum bits (qubits) and their performance is required to demonstrate such quantum supremacy. While ...

ELSEVIER SCIENCE BV2019

Voltage References for the Ultra-Wide Temperature Range from 4.2 K to 300 K in 40-nm CMOS

Edoardo Charbon, Fabio Sebastiano

This paper presents a family of voltage references in standard 40-nm CMOS that exploits the temperature dependence of dynamic-threshold MOS, NMOS and PMOS transistors in weak inversion to enable operation over the ultra-wide temperature range from 4.2 K to ...

IEEE2019

Subthreshold Mismatch in Nanometer CMOS at Cryogenic Temperatures

Edoardo Charbon, Fabio Sebastiano

Cryogenic device models are essential for the reliable design of the cryo-CMOS interface that enables large-scale quantum computers. In this paper, mismatch characterization and modeling of a 40-nm bulk CMOS process over the 4.2-300 K temperature range is ...

IEEE2019

Towards a scalable quantum computer

Edoardo Charbon, Fabio Sebastiano

A quantum machine may solve some complex problems that are intractable for even the most powerful classical computers. By exploiting quantum superposition and entanglement phenomena, quantum algorithms can achieve from polynomial to exponential speed up wh ...

2018

The impact of classical control electronics on qubit fidelity

Edoardo Charbon, Fabio Sebastiano

Quantum processors rely on classical electronic controllers to manipulate and read out the quantum state. As the performance of the quantum processor improves, non-idealities in the classical controller can become the performance bottleneck for the whole q ...

2018

The Cryogenic Temperature Behavior of Bipolar, MOS, and DTMOS Transistors in Standard CMOS

Edoardo Charbon, Fabio Sebastiano, Harald Arjan Robert Homulle

Both CMOS bandgap voltage references and temperature sensors rely on the temperature behavior of either CMOS substrate BJTs or MOS transistors in weak inversion. Bipolar transistors are generally preferred over MOS transistors because of their lower spread ...

2018

A Co-design Methodology for Scalable Quantum Processors and their Classical Electronic Interface

Edoardo Charbon, Fabio Sebastiano

A quantum computer fundamentally comprises a quantum processor and a classical controller. The classical electronic controller is used to correct and manipulate the qubits, the core components of a quantum processor. To enable quantum computers scalable to ...

IEEE2018

Characterization and Compact Modeling of Nanometer CMOS Transistors at Deep-Cryogenic Temperatures

Edoardo Charbon, Fabio Sebastiano, Harald Arjan Robert Homulle

Cryogenic characterization and modeling of two nanometer bulk CMOS technologies (0.16-μm and 40-nm) are presented in this paper. Several devices from both technologies were extensively characterized at temperatures of 4 K and below. Based on a detailed und ...

2018

Quantum information density scaling and qubit operation time constraints of CMOS silicon-based quantum computer architectures

Edoardo Charbon, Fabio Sebastiano

Even the quantum simulation of an apparently simple molecule such as Fe2S2 requires a considerable number of qubits of the order of 106, while more complex molecules such as alanine (C3H7NO2) require about a hundred times more. In order to assess such a mu ...

2017

A reconfigurable cryogenic platform for the classical control of quantum processors

Edoardo Charbon, Fabio Sebastiano, Harald Arjan Robert Homulle

The implementation of a classical control infrastructure for large-scale quantum computers is challenging due to the need for integration and processing time, which is constrained by coherence time. We propose a cryogenic reconfigurable platform as the hea ...

2017

Characterization of bipolar transistors for cryogenic temperature sensors in standard CMOS

Edoardo Charbon, Fabio Sebastiano, Harald Arjan Robert Homulle

This paper presents the cryogenic characterization of the bipolar substrate PNPs that are typically employed as sensing elements in CMOS integrated temperature sensors. PNPs realized in a standard 160-nm CMOS technology were characterized over the temperat ...

2017

15.5 Cryo-CMOS circuits and systems for scalable quantum computing

Edoardo Charbon, Fabio Sebastiano, Harald Arjan Robert Homulle

Quantum computing holds the promise to achieve unprecedented computation power and to solve problems today intractable. State-of-the-art quantum processors consist of arrays of quantum bits (qubits) operating at a very low base temperature, typically a few ...

2017

Cryogenic CMOS interfaces for quantum devices

Edoardo Charbon, Fabio Sebastiano, Harald Arjan Robert Homulle

Quantum computers could efficiently solve problems that are intractable by today's computers, thus offering the possibility to radically change entire industries and revolutionize our lives. A quantum computer comprises a quantum processor operating at cry ...

2017

Cryo-CMOS Circuits and Systems for Quantum Computing Applications

Edoardo Charbon, Fabio Sebastiano, Harald Arjan Robert Homulle

A fault-tolerant quantum computer with millions of quantum bits (qubits) requires massive yet very precise control electronics for the manipulation and readout of individual qubits. CMOS operating at cryogenic temperatures down to 4 K (cryo-CMOS) allows fo ...

2017

Cryo-CMOS Electronic Control for Scalable Quantum Computing

Edoardo Charbon, Fabio Sebastiano, Harald Arjan Robert Homulle

Quantum computers1 could revolutionize computing in a profound way due to the massive speedup they promise. A quantum computer comprises a cryogenic quantum processor and a classical electronic controller. When scaling up the cryogenic quantum processor to ...

2017

Cryo-CMOS for quantum computing

Edoardo Charbon, Fabio Sebastiano, Harald Arjan Robert Homulle

Cryogenic CMOS, or cryo-CMOS circuits and systems, are emerging in VLSI design for many applications, in primis quantum computing. Fault-tolerant quantum bits (qubits) in surface code configurations, one of the most accepted implementations in quantum comp ...

2017

Nanometer CMOS characterization and compact modeling at deep-cryogenic temperatures

Edoardo Charbon, Fabio Sebastiano, Harald Arjan Robert Homulle

The characterization of nanometer CMOS transistors of different aspect ratios at deep-cryogenic temperatures (4 K and 100 mK) is presented for two standard CMOS technologies (40 nm and 160 nm). A detailed understanding of the device physics at those temper ...

2017

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