Strain induced coupling and quantum information processing with hexagonal boron nitride quantum emitters

  title={Strain induced coupling and quantum information processing with hexagonal boron nitride quantum emitters},
  author={F. T. Tabesh and Qaem Hassanzada and M Hadian and Arsalan Hashemi and I. Abdolhosseini Sarsari and Mehdi Abdi},
  journal={Quantum Science \& Technology},
We propose an electromechanical scheme where the electronic degrees of freedom of boron vacancy color centers hosted by a hexagonal boron nitride (hBN) nanoribbon are coupled for quantum information processing. The mutual coupling of color centers is provided via their coupling to the mechanical motion of the ribbon, which in turn stems from the local strain. The coupling strengths are computed by performing ab initio calculations. The density functional theory results for boron vacancy centers… 

Excitons under strain: light absorption and emission in strained hexagonal boron nitride

Hexagonal boron nitride is an indirect band gap material with a strong luminescence in the ultraviolet. This luminescence originates from bound excitons recombination assisted by different phonon



Spin-Mechanical Scheme with Color Centers in Hexagonal Boron Nitride Membranes.

This work proposes and analyzes a spin-mechanical system based on color centers in a suspended hBN mechanical resonator, and shows that a fast and noise-resilient preparation of a multicomponent cat state and a squeezed state of the mechanical resonators is possible.

Controlling the coherence of a diamond spin qubit through its strain environment

This work uses a nano-electro-mechanical system to mitigate the effect of thermal phonons on a spin qubit – the silicon-vacancy colour centre in diamond – without changing the system temperature, and demonstrates the use of strain to tune a silicon vacancy’s electronic structure and suppress phonon-mediated decoherence.

Initialization and read-out of intrinsic spin defects in a van der Waals crystal at room temperature

An ensemble of spins associated with an intrinsic defect of two-dimensional hexagonal boron nitride is shown to be optically addressable, allowing spin polarization of its triplet ground state and providing evidence of spin coherence.

Strain‐Induced Modification of the Optical Characteristics of Quantum Emitters in Hexagonal Boron Nitride

Tensile strain is applied to quantum emitters embedded in few-layer hBN films and both red and blue spectral shifts are realized with tuning magnitudes up to 65 meV, a record for any 2D quantum source.

Coherent acoustic control of a single silicon vacancy spin in diamond

Phonons are considered to be universal quantum transducers due to their ability to couple to a wide variety of quantum systems. Among these systems, solid-state point defect spins are known for being

Color Centers in Hexagonal Boron Nitride Monolayers: A Group Theory and Ab Initio Analysis

We theoretically study physical properties of the most promising color center candidates for the recently observed single-photon emissions in hexagonal boron nitride (h-BN) monolayers. Through our

Quantum Light in Curved Low Dimensional Hexagonal Boron Nitride Systems

This work investigates a curvature-abundant BN system – quasi one-dimensional BN nanotubes (BNNTs) fabricated via a catalyst-free method and finds that non-treated BNNT is an abundant source of stable QEs, and provides a model explaining QEs spatial localization/formation using electron/ion irradiation and chemical etching.

Dangling Bonds in Hexagonal Boron Nitride as Single-Photon Emitters.

This work proposes boron dangling bonds as the likely source of the observed single-photon emission around 2 eV and predicts a singlet ground state and the existence of a metastable triplet state, in agreement with experiment.

Dynamic strain-mediated coupling of a single diamond spin to a mechanical resonator

The development of hybrid quantum systems is central to the advancement of emerging quantum technologies, including quantum information science and quantum-assisted sensing. The recent demonstration

Coupling of nitrogen vacancy centres in nanodiamonds by means of phonons

Realizing controlled quantum dynamics via the magnetic interactions between colour centres in diamond remains a challenge despite recent demonstrations for nanometre separated pairs. Here we propose