Concept
Centre azote-lacune
Publications associées (24)
Electron-beam based nanoscale quantum controls
Advancing quantum technologies depends on the precise control of individual quantum systems, the so-called qubits, and the exploitation of their quantum properties. Nowadays, expanding the number of qubits to be entangled is at the core of the developments ...
EPFL2024Strong coupling between a microwave photon and a singlet-triplet qubit
Pasquale Scarlino, Jann Hinnerk Ungerer
Combining superconducting resonators and quantum dots has triggered tremendous progress in quantum information, however, attempts at coupling a resonator to even charge parity spin qubits have resulted only in weak spin-photon coupling. Here, we integrate ...
Nature Portfolio2024High-precision optical magnetometry using Nitrogen Vacancies in CVD diamond
Sensing weak magnetic fields is a topic of great importance in basic science and technology due to its wide range of applications. In this context, solid-state and nanoscale quantum sensors are poised to revolutionize the sensing platforms due to their ult ...
EPFL2023Dynamical nuclear polarization for dissipation-induced entanglement in NV centers
Mayeul Sylvain Chipaux, Shashwat Kumar, Géraldine Haack, Shishir Khandelwal
We propose a practical implementation of a two-qubit entanglement engine which denotes a scheme to generate quantum correlations through purely dissipative processes. On a diamond platform, the electron spin transitions of two nitrogen-vacancy (NV) centers ...
College Pk2023Chiral control of spin-crossover dynamics in Fe (II) complexes
Majed Chergui, Malte Oppermann, Jérôme Lacour
Iron-based spin-crossover complexes hold tremendous promise as multifunctional switches in molecular devices. However, real-world technological applications require the excited high-spin state to be kinetically stable-a feature that has been achieved only ...
NATURE PORTFOLIO2022Pixel super-resolution with spatially entangled photons
Pixelation is common in quantum imaging systems and limit the image spatial resolution. Here, the authors introduce a pixel super-resolution approach based on measuring the full spatially-resolved joint probability distribution of spatially-entangled photo ...
NATURE PORTFOLIO2022Exploring optically active defects in wide-bandgap materials using fluorescence microscopy
Defects in solid-state systems can be both detrimental, deteriorating the quality of materials, or desired, thanks to the novel functionality they bring. Optically active point defects, producing fluorescent light, are a great example of the latter. Natura ...
EPFL2021Scaling analyses for hyperpolarization transfer across a spin-diffusion barrier and into bulk solid media
David Lyndon Emsley, Arthur César Pinon, Bradley Floyd Chmelka
By analogy to heat and mass transfer film theory, a general approach is introduced for determining hyperpolarization transfer rates between dilute electron spins and a surrounding nuclear ensemble. These analyses provide new quantitative relationships for ...
ROYAL SOC CHEMISTRY2021Cryogenic CMOS Integrated Circuits for Scalable Readout of Silicon Quantum Computers
Quantum computing promises to revolutionize our lives, achieving unprecedented computational powers and unlocking new possibilities in drug discovery, chemical simulations and cryptography. The fundamental unit of computation of a quantum computer is the q ...
EPFL2021Optical-Microwave Pump-Probe Studies of Electronic Properties in Novel Materials
Ferenc Simon, Karoly Holczer, Bence Gábor Márkus, Sándor Kollarics, András Bojtor
Combined microwave-optical pump-probe methods are emerging to study the quantum state of spin qubit centers and the charge dynamics in semiconductors. A major hindrance is the limited bandwidth of microwave irradiation/detection circuitry which can be over ...
WILEY-V C H VERLAG GMBH2020