Noise-Enhanced Quantum Control

Información del proyecto

NEQC

Identificador del acuerdo de subvención: 795159

DOI

10.3030/795159

Proyecto finalizado el 5 Marzo 2020

Fecha de la firma de la CE 1 Marzo 2018

Fecha de inicio 1 Abril 2018

Fecha de finalización 1 Abril 2021

Financiado con arreglo a

• EXCELLENT SCIENCE - Marie Skłodowska-Curie Actions

Coste total

€ 179 325,60

Aportación de la UE

€ 179 325,60

Coordinado por

AALTO KORKEAKOULUSAATIO SR
Finland

Objetivo

Operating state-of-the-art quantum circuits is typically limited by noise, especially if they work in the microwave domain like superconducting quantum bits, qubits. Instead of trying to avoid the omnipresent fluctuations, I will implement a circuit architecture, which is suitable to profit from noise. To this end, I will realize two main objectives based on an intense, bidirectional knowledge transfer between my host organization, QCD Labs and me. The first objective is to implement a superconducting qubit with in-situ tunable decay and dephasing rates. The dephasing rate of a qubit is tunable through photon shot-noise induced by a dispersively coupled microwave resonator. I will add to this scenario the innovative concept to control the decay rate in-situ by coupling the qubit to a pair of superconductor-insulator-normal metal (SIN) junctions, such that photon-assisted single-electron tunneling can be used to control the qubit decay. With these fully controllable qubits, I will implement a fast reset of the qubit state, which is a prerequisite for quantum computing. In addition, I will generate new insights in non-Markovian qubit dynamics. The second objective is the coherent coupling of two qubits with tunable decoherence rates. The resulting fundamental building block of a transversely coupled Ising model will serve to study remote-cooling of one qubit via the other and to simulate multi-dimensional master equations. My results will have strong impact on quantum engineering, quantum computing, and the simulation of chemical compounds. To realize my two objectives, I will create a European network of distinguished researchers related to open dissipative quantum systems. The fellowship will advance my career plans because I will become an expert in single-electron tunneling and get leadership and management-oriented training. In return, I will transfer my knowledge on superconducting qubits obtained during my PhD to QCD Labs generating a win-win situation.

Ámbito científico (EuroSciVoc)

• ciencias naturales › ciencias físicas › física cuántica
• ingeniería y tecnología › ingeniería eléctrica, ingeniería electrónica, ingeniería de la información › ingeniería electrónica › hardware informático › ordenador cuántico
• ciencias naturales › ciencias físicas › física teórica › física de partículas › fotones

Palabras clave

• superconducting quantum bits
• photon-assisted single-electron tunneling
• engineering quantum environments
• microwave circuits
• nano fabrication

Programa(s)

• H2020-EU.1.3. - EXCELLENT SCIENCE - Marie Skłodowska-Curie Actions PROGRAMA PRINCIPAL
  
• H2020-EU.1.3.2. - Nurturing excellence by means of cross-border and cross-sector mobility
  

Tema(s)

• MSCA-IF-2017 - Individual Fellowships
  

Régimen de financiación

MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF)

Convocatoria de propuestas

H2020-MSCA-IF-2017

Coordinador

AALTO KORKEAKOULUSAATIO SR

• Aportación neta de la UEn: € 179 325,60
• Dirección: OTAKAARI 1 ; 02150 Espoo ; Finlandia
• Región: Manner-Suomi › Helsinki-Uusimaa › Helsinki-Uusimaa
• Tipo de actividad: Higher or Secondary Education Establishments
• Coste total: € 179 325,60