Roadmap for gallium arsenide spin qubits
- URL: http://arxiv.org/abs/2011.13907v1
- Date: Fri, 27 Nov 2020 18:48:20 GMT
- Title: Roadmap for gallium arsenide spin qubits
- Authors: Ferdinand Kuemmeth and Hendrik Bluhm
- Abstract summary: Gate-defined quantum dots in gallium arsenide (GaAs) have been used extensively for pioneering spin qubit devices.
GaAs spin qubits are readily produced in many labs and are currently studied for various applications.
- Score: 31.29387328451118
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Gate-defined quantum dots in gallium arsenide (GaAs) have been used
extensively for pioneering spin qubit devices due to the relative simplicity of
fabrication and favourable electronic properties such as a single conduction
band valley, a small effective mass, and stable dopants. GaAs spin qubits are
readily produced in many labs and are currently studied for various
applications, including entanglement, quantum non-demolition measurements,
automatic tuning, multi-dot arrays, coherent exchange coupling, and
teleportation. Even while much attention is shifting to other materials, GaAs
devices will likely remain a workhorse for proof-of-concept quantum information
processing and solid-state experiments.
Related papers
- Dipolar quantum solids emerging in a Hubbard quantum simulator [45.82143101967126]
Long-range and anisotropic interactions promote rich spatial structure in quantum mechanical many-body systems.
We show that novel strongly correlated quantum phases can be realized using long-range dipolar interaction in optical lattices.
This work opens the door to quantum simulations of a wide range of lattice models with long-range and anisotropic interactions.
arXiv Detail & Related papers (2023-06-01T16:49:20Z) - Jellybean quantum dots in silicon for qubit coupling and on-chip quantum
chemistry [0.6818394664182874]
Small size and excellent integrability of silicon metal-oxide-semiconductor (SiMOS) quantum dot spin qubits make them an attractive system for mass-manufacturable, scaled-up quantum processors.
This paper investigates the charge and spin characteristics of an elongated quantum dot for the prospects of acting as a qubit-qubit coupler.
arXiv Detail & Related papers (2022-08-08T12:24:46Z) - Tunable photon-mediated interactions between spin-1 systems [68.8204255655161]
We show how to harness multi-level emitters with several optical transitions to engineer photon-mediated interactions between effective spin-1 systems.
Our results expand the quantum simulation toolbox available in cavity QED and quantum nanophotonic setups.
arXiv Detail & Related papers (2022-06-03T14:52:34Z) - Quantum Dots / Spin Qubits [0.0]
Spin qubits in semiconductor quantum dots represent a prominent family of solid-state qubits in the effort to build a quantum computer.
The simplest spin qubit is a single electron spin located in a quantum dot.
Spin qubits experience complex effects due to their semiconductor environment.
arXiv Detail & Related papers (2022-04-08T19:21:19Z) - Protecting Quantum Information in Quantum Dot Spin Chains by Driving
Exchange Interactions Periodically [0.0]
We present a detailed analysis of exchange-driven Floquet physics in small arrays of GaAs quantum dots.
We show that emergent time-crystalline behavior can benefit the protection and manipulation of multi-spin states.
arXiv Detail & Related papers (2020-09-17T18:00:06Z) - A Chirality-Based Quantum Leap [46.53135635900099]
Chiral degrees of freedom occur in matter and in electromagnetic fields.
Recent observations of the chiral-induced spin selectivity (CISS) effect in chiral molecules and engineered nanomaterials.
arXiv Detail & Related papers (2020-08-31T22:47:39Z) - Conditional quantum operation of two exchange-coupled single-donor spin
qubits in a MOS-compatible silicon device [48.7576911714538]
Silicon nanoelectronic devices can host single-qubit quantum logic operations with fidelity better than 99.9%.
For the spins of an electron bound to a single donor atom, introduced in the silicon by ion implantation, the quantum information can be stored for nearly 1 second.
Here we demonstrate the conditional, coherent control of an electron spin qubit in an exchange-coupled pair of $31$P donors implanted in silicon.
arXiv Detail & Related papers (2020-06-08T11:25:16Z) - Waveguide Bandgap Engineering with an Array of Superconducting Qubits [101.18253437732933]
We experimentally study a metamaterial made of eight superconducting transmon qubits with local frequency control.
We observe the formation of super- and subradiant states, as well as the emergence of a polaritonic bandgap.
The circuit of this work extends experiments with one and two qubits towards a full-blown quantum metamaterial.
arXiv Detail & Related papers (2020-06-05T09:27:53Z) - The germanium quantum information route [2.449694738547425]
We introduce the physics of holes in low-dimensional germanium structures with key insights from a theoretical perspective.
We examine the material science progress underpinning germanium-based planar heterostructures and nanowires.
We conclude by identifying the most promising prospects toward scalable quantum information processing.
arXiv Detail & Related papers (2020-04-17T09:15:36Z) - Low-Noise GaAs Quantum Dots for Quantum Photonics [0.45507178426690204]
GaAs quantum dots in AlGaAs can be matched in frequency to a rubidium-based photon memory.
Our work establishes a materials platform for low-noise quantum photonics close to the red part of the spectrum.
arXiv Detail & Related papers (2020-02-28T19:00:09Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.