scaling-up quantum computation with molecular spins (sumo) · 2018. 4. 30. · microwavequantum...
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Scaling-Up quantum computation with Molecular spins (SUMO)
Long-term visionArtificial magnetic molecules
Fully reproducible
Microscopic and chemicallytuneable
Multi-qubit systems
Project’s objectives
Magnetic quantum processor
Circuit Quantum Electrodynamics (QED)
Single microwave photons on a chip
Qubit read-out and coherent control
Quantum bus: wire up qubits
Interdisciplinary teamMolecular logical qubits
3-9 addressable qubits
Universal set of qugates
Quantum error correction (QEC) codes
| ⟩0| ⟩0
| ⟩0| ⟩1
XUndoerror
| ⟩𝜓𝜓𝜓 | ⟩𝜓𝜓
Coherent coupling to a single magnetic molecule
Single spin coherence T2 > 1 ms
Nanoresonators
Circuit QED with individual spins
CSIC (coord.)1. ICMA (F. Luis): Low-T physics, nano-devices, theory2. U. Barcelona (G. Aromí): Chemical design3. ICMOL-U. Valencia (E. Coronado): Nanolithography
U. ManchesterR. Winpenny
Chemical design & ElectronParamagnetic Resonance
U. OxfordA. Ardavan
Pulsed Electron ParamagneticResonance
U. Stuttgart (FMQ)S. Loth
Scanning tunneling microscopy, single-molecule spectroscopy
TU. WienJ. Majer
Circuit QED experiments
INSTM
1. U. Parma (S. Carretta): Theory
2. U. Firenze (R. Sessoli): Chemicaldesign, surface science
S/T activities: work plan
1 2
3
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2
Multiqubit molecules
Physicalcharacterization
CSIC, UMAN, INSTM
Spin coherenceoptimization
Quantum gates for QEC
GdW30
(PPh4)2[Cu(mnt)2]
(PPh4)2[V(C8S8)3]
Impact
SC nano-resonatorsNanopatterning
Molecules on SC surfaces&
Single spin coherence
UMAN, UOXF, CSIC
Circuit QEDControl & Read-out
Theory
Coherent spin-photon coupling& QEC in single molecules
FMQ, INSTM CSIC, INSTM, TUWIEN TUWIEN, CSIC
Management & dissemination
Frequency (GHZ)
INSTM, TUWIEN, CSIC
Short-medium term (3-6 years) Coherently coupling single spins to single photons: wire-
up spin qubits
Mastering decoherence of spin qubits
Microwave quantum spin sensors: single molecule EPR
Medium term (6 years)
Scalable register of (> 100) noise-resilient logical spin qubits
A novel, genuinely European platform for quantum computation and quantum simulation
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