activity
20212026
most citedSymmetric carbon tetramers forming chemically stable spin qubits in hBN

30 citations · 76 across the 11 of their papers we have counts for

collaborators

11 papers

cond-mat.mes-hall2026

Persistence and emergence of quantum defects through pressure-induced phase changes

Alexander J Healey, Alan Salek, Christopher T-K Lew +15

Extreme pressures can transform materials and their properties, but probing these in-situ is made challenging by the small sample volumes and access requirements demanded by diamon…

cond-mat.mtrl-sci2026

Natural van der Waals silicates as hosts for telecom quantum emitters: the case of erbium-doped talc

Gellért Dolecsek, Zsolt Benedek, Nguyen Tien Son +1

Erbium ion is among the most promising solid-state single photon emitters and spin-photon interfaces for quantum networks, emitting directly in the telecom C-band in many host semi…

cond-mat.mtrl-sci2026

Accurate description of the electronic states of the V center in hBN by wavefunction theory

Zsolt Benedek, Ádám Ganyecz, Oscar Bulancea-Lindvall +2

Ensembles of negatively charged boron vacancy (V) centers in hexagonal boron nitride (hBN) have emerged as a two-dimensional spin qubit system interfaced with optics…

cond-mat.mtrl-sci2025

Demonstration of the ODMR activity of the telecom range ClV center in SiC: a wavefunction theory analysis

Zsolt Benedek, Oscar Bulancea-Lindvall, Joel Davidsson +2

Recently, density functional theory-based high-throughput screening of point defects in 4H-SiC revealed the positively charged chlorine-vacancy (ClV) defect to be a promising quant…

physics.chem-ph2025

Assessing the Reliability of Truncated Coupled Cluster Wavefunction: Estimating the Distance from the Exact Solution

Ádám Ganyecz, Zsolt Benedek, Klára Petrov +4

A new approach is proposed to assess the reliability of the truncated wavefunction methods by estimating the deviation from the full configuration interaction (FCI) wavefunction. W…

cond-mat.mtrl-sci2025

Identifying high-energy electronic states of NV centers in diamond

Minh Tuan Luu, Christopher Linderälv, Zsolt Benedek +4

The negatively charged nitrogen-vacancy center in diamond is a prototype photoluminescent point defect spin qubit with promising quantum technology applications, enabled by its eff…

cond-mat.mtrl-sci2024

Accurate and convergent energetics of color centers by wavefunction theory

Zsolt Benedek, Ádám Ganyecz, Anton Pershin +2

Ab initio description of point defects in semiconductors, characterized by in-gap states of significant multideterminant character, presents a longstanding theoretical challenge fo…

cond-mat.mtrl-sci2023★ 17 cited

First principles theory of the nitrogen interstitial in hBN: a plausible model for the blue emitter

Ádám Ganyecz, Rohit Babar, Zsolt Benedek +3

Color centers in hexagonal boron nitride (hBN) have attracted considerable attention due to their remarkable optical properties enabling robust room temperature photonics and quant…

cond-mat.mtrl-sci2023★ 30 cited

Symmetric carbon tetramers forming chemically stable spin qubits in hBN

Zsolt Benedek, Rohit Babar, Ádám Ganyecz +4

Point defect quantum bits in semiconductors have the potential to revolutionize sensing at atomic scales. Currently, vacancy related defects, such as the NV center in diamond and t…

physics.chem-ph2021★ 15 cited

Towards large-scale restricted active space calculations inspired by the Schmidt decomposition

Gergely Barcza, Miklós Antal Werner, Gergely Zaránd +4

We present an alternative, memory-efficient, Schmidt decomposition-based description of the inherently bipartite restricted active space (RAS) scheme, which can be implemented effo…

physics.chem-ph2021★ 14 cited

Sensitivity of Coupled Cluster Electronic Properties on the Reference Determinant: Can Kohn-Sham Orbitals Be More Beneficial than Hartree-Fock Orbitals?

Zsolt Benedek, Paula Tímár, Tibor Szilvási +1

Coupled cluster calculations are traditionally performed over Hartree-Fock reference orbitals (HF-CC methodology). However, it has been repeatedly argued in the literature that the…