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Cryogenic CMOS Integrated Circuits for Scalable Readout of Silicon Quantum Computers

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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

SAT-based {CNOT, T} Quantum Circuit Synthesis

Giovanni De Micheli, Mathias Soeken, Giulia Meuli

The prospective of practical quantum computers has lead researchers to investigate automatic tools to program them. A quantum program is modeled as a Clifford+T quantum circuit that needs to be optimized in order to comply with quantum technology constrain ...

2018

Coherent spin–photon coupling using a resonant exchange qubit

Pasquale Scarlino

Electron spins hold great promise for quantum computation because of their long coherence times. Long-distance coherent coupling of spins is a crucial step towards quantum information processing with spin qubits. One approach to realizing interactions betw ...

2018

Site-controlled quantum dots integrated with photonic crystal waveguides and cavities

Bruno Marie Dominique Rigal

Quantum mechanics did not only deeply transform our world view down to a philosophical level, it is also expected to be key ingredient of future so-called quantum technologies. Indeed, quantum properties of matter such as isolated single particles or entan ...

EPFL2018

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

Programming Quantum Computers Using Design Automation

Mathias Soeken

Recent developments in quantum hardware indicate that systems featuring more than 50 physical qubits are within reach. At this scale, classical simulation will no longer be feasible and there is a possibility that such quantum devices may outperform even c ...

IEEE2018

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

Development of a monolithic near-field optomechanical system

Ryan Daniel Schilling

In the same year as Einstein's annus mirabilis, English engineer and physicist John Flemming patented the first rectifying diode, which he called the "Flemming valve". Einstein's work on the photoelectric effect would change our understanding of the nature ...

EPFL2018

Steep Slope Transistors for Quantum Computing

Mihai Adrian Ionescu, Teodor Rosca, Cem Alper

In this paper we will present and discuss the potential of steep slope transistors to serve at cryogenic temperature: (i) the electronic design that is needed for qubit error correction and/or interfacing and (ii) to serve as ultra-sensitive charge detecto ...

IEEE2018

A programmable two-qubit quantum processor in silicon

Pasquale Scarlino

A two-qubit quantum processor in a silicon device is demonstrated, which can perform the Deutsch–Josza algorithm and the Grover search algorithm. ...

2018