The germanium quantum information route

G Scappucci, C Kloeffel, FA Zwanenburg… - Nature Reviews …, 2021 - nature.com
In the effort to develop disruptive quantum technologies, germanium is emerging as a
versatile material to realize devices capable of encoding, processing and transmitting …

Achieving high-fidelity single-qubit gates in a strongly driven charge qubit with 1/f charge noise

YC Yang, SN Coppersmith, M Friesen - npj Quantum Information, 2019 - nature.com
Charge qubits formed in double quantum dots represent quintessential two-level systems
that enjoy both ease of control and efficient readout. Unfortunately, charge noise can cause …

Entangling distant resonant exchange qubits via circuit quantum electrodynamics

V Srinivasa, JM Taylor, C Tahan - Physical Review B, 2016 - APS
We investigate a hybrid quantum system consisting of spatially separated resonant
exchange qubits, defined in three-electron semiconductor triple quantum dots, that are …

The germanium quantum information route

S Giordano, K Christoph… - Nature Reviews …, 2021 - search.proquest.com
In the effort to develop disruptive quantum technologies, germanium is emerging as a
versatile material to realize devices capable of encoding, processing and transmitting …

Enhancing the dipolar coupling of a S-T0 qubit with a transverse sweet spot

JC Abadillo-Uriel, MA Eriksson… - Nature …, 2019 - nature.com
A fundamental challenge for quantum dot spin qubits is to extend the strength and range of
qubit interactions while suppressing their coupling to the environment, since both effects …

Lattice deformation and potential effects on linear and nonlinear optical properties of doped SiGe quantum dot encapsulated in Si matrix

K Lakaal, M Kria, JE Hamdaoui, V Prasad… - The European Physical …, 2022 - Springer
Electron states in spheroid\(Si_ {0.7} Ge_ {0.3}\) quantum dots are investigated taking into
account the presence of a donor impurity atom and a weak external electromagnetic laser …

Phonon-induced exchange gate infidelities in semiconducting Si-SiGe spin qubits

M Brooks, R Lundgren, C Tahan - Physical Review B, 2024 - APS
Spin-spin exchange interactions between semiconductor spin qubits allow for fast single-
and two-qubit gates. During exchange, coupling of the qubits to a surrounding phonon bath …

Capillary-driven elastic attraction between quantum dots

K Liu, I Berbezier, L Favre, A Ronda, M Abbarchi… - Nanoscale, 2019 - pubs.rsc.org
We present a novel self-assembly route to align SiGe quantum dots. By a combination of
theoretical analyses and experimental investigation, we show that epitaxial SiGe quantum …

Phonon-induced decoherence of a charge quadrupole qubit

V Kornich, MG Vavilov, M Friesen… - New Journal of …, 2018 - iopscience.iop.org
Many quantum dot qubits operate in regimes where the energy splittings between qubit
states are large and phonons can be the dominant source of decoherence. The recently …

Inter-and intraband Coulomb interactions between holes in silicon nanostructures

A Secchi, L Bellentani, A Bertoni, F Troiani - Physical Review B, 2021 - APS
We present a full derivation of the interaction Hamiltonian for holes in silicon within the six–
band envelope-function scheme, which appropriately describes the valence band close to …