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the Wake Forest University - Nano and Quantum Technologies Laboratory


Welcome to the Quantum Machines Group at NanoteQ
The Quantum Machines Group, is an energetic group of scientists and engineers at Wake Forest University drawn together by a mutual interest in all things quantum: quantum information theory, quantum materials, and quantum sensing. The group sponsors: informal meetings and talks, workshops, and occasionally hosts guest scientists. Moreover, each group member is actively involved in Wake's graduate program in Quantum Information Sciences (QIS). QMG activities are open to all WFU students, faculty, and staff.
On the right is a new dual rail topological qubit under development by members of the QMG team. It was fabricated in the WFU cleanrooms at NANOTEQ and its general computation purpose is being tested by groups at WFU and in Germany. This is just one of several quantum information technology programs ongoing at WFU.
About Us
Ajay Ram Srimath Kandada
We study the chemical and physical factors that govern dynamics in a wide class of materials through advanced optical spectroscopic techniques. Our primary tools are based on sources of ultrafast optical pulses and quantum entangled photons in the visible-NIR spectral regions
Emilie Huffman
The Huffman group devises tests for quantum computing hardware that measure the degree to which the behavior cannot be explained classically, and thus provide metrics for quantum performance. Dr. Huffman designed quantum circuits to demonstrate that the original IBM quantum hardware violated classical mechanical assumptions (macrorealism) through violating Leggett-Garg inequalities. These inequalities can be applied to systems as small as a single qubit. Moreover, rather than requiring spatial separation of qubits the way Bell inequalities do, they instead rely on time separation of measurements and thus are more easily adaptable to a variety of quantum platforms. Huffman currently also works on error-mitigated simulations of quantum systems relevant to condensed matter physics and particle physics using quantum link models, which can be straightforwardly set up with two-level building blocks.
Stephen M. Winter
We do theoretical condensed matter physics in the area of Quantum Materials — including quantum magnets and topological insulators. We use a variety of theoretical approaches – including large numerical simulations and analytical (pen on paper) calculations – to try to model experiments on real materials, as well as classify and predict new quantum phases.
David L. Carroll
We study qubits based on topological systems for use in quantum information processing. We use lithography and direct writing technologies to create qubit registers similar to those using transmons but with our own twist.
Synthesis and characterization studies of higher order topologies in materials systems for testing of the stabilization conjecture - a concept that we believe will lead to room temperature QC.
Topological systems are also being studied as ideal many-body accumulation platforms (MBA) in Floquet systems - ie. topological time crystals.
Vojislav Krstic (FAU - Erlangen DE)
Transport and magneto transport properties of 2D chalcogenide topological systems. The focus is currently on chiral materials.

A Few Papers by Us
Solution-based iron doping of solvothermally grown 2D hexagonal bismuth telluride
GE Marcus, TW Carlson, K Swathi, D Carroll
APL Materials 12 (8)
Solvothermal synthesis of crystalline 2D bismuth telluride with an isoelectronic dopant
LJ Gray, K Swathi, D Mumbaraddi, TW Carlson, G Marcus, DL Carroll
APL Materials 12 (7)
Solvothermal growth of moiré superlattices in antimony telluride spiral-type nanoplates
R Link, G Marcus, D Carroll
Frontiers in Materials 9, 963775
Pressure-dependent magnetism of the Kitaev candidate Li2RhO3
B Shen, E Insuasti Pazmino, R Dhakal, F Freund, P Gegenwart, ...
npj Quantum Materials 10 (1), 9
Quantum order by disorder is a key to understanding the magnetic phases of BaCo2(AsO4)2
S Lee, S Zhang, SM Thomas, L Pressley, CA Bridges, ES Choi, VS Zapf, ...
npj Quantum Materials 10 (1), 11
Ferroelectric and Multiferroic Properties of Quasi-2D Organic Charge-Transfer Salts: A Review
M Lang, P Lunkenheimer, O Ganter, S Winter, J Müller
Journal of Electronic Materials, 1-43
Fine-Tuning Exciton Polaron Characteristics via Lattice Engineering in 2D Hybrid Perovskites
KA Koch, M Gomez-Dominguez, E Rojas-Gatjens, A Evju, KB Ucer, ...
arXiv preprint arXiv:2502.08521
Materials and Cavity Design Principles for Exciton-Polariton Condensates
M Gomez-Dominguez, EJ Kumar, KA Koch, AR Srimath Kandada, ...
ACS nano
Lyapunov Dynamics in Entangled Biphoton Spectroscopy
S Damball, ARS Kandada, ER Bittner
arXiv preprint arXiv:2504.14086
Spontaneous symmetry breaking in a non-Abelian lattice gauge theory in SO(3) with quantum algorithms
S Maiti, D Banerjee, B Chakraborty, E Huffman
Physical Review Research 7 (1), 013283
Towards the phase diagram of fermions coupled with SO (3) quantum links in (2+ 1)-D
GV Goffrier, D Banerjee, B Chakraborty, E Huffman, S Maiti
arXiv
Quantum Monte Carlo simulation of the 3D Ising transition on the fuzzy sphere
JS Hofmann, F Goth, W Zhu, YC He, E Huffman
SciPost Physics Core 7 (2), 028
Second-Order Nonlinear Circular Dichroism in Square Lattice Array of Germanium Nanohelices (journal article)
Saerens, Grégoire | Ellrott, Günter | Pashina, Olesia | Deriy, Ilya | Krstić, Vojislav | Petrov, Mihail | Chekhova, Maria | Grange, Rachel
ACS Photonics, volume 11, issue 9, pages 3630-3635 (2024).
Unconventional conductivity increase in multilayer black phosphorus (journal article)
Koleśnik-Gray, Maria | Meingast, Laura | Siebert, Martin | Unbehaun, Tim | Huf, Tobias | Ellrott, Günter | Abellán, Gonzalo | Wild, Stefan | Lloret, Vicent | Mundloch, Udo | ... | Krstić, Vojislav
npj 2D Materials and Applications, volume 7, issue 1 (2023).
Spectro‐Spatial Unmixing in Optical Microspectroscopy for Thickness Determination of Layered Materials(journal article)
Schwarz, Julian | Niebauer, Michael | Römling, Lukas | Pham, Adrian | Koleśnik‐Gray, Maria | Evanschitzky, Peter | Vogel, Nicolas | Krstić, Vojislav | Rommel, Mathias | Hutzler, Andreas
Advanced Optical Materials (2024).
The Quantum Lab
The QMG has a broad range of experimental capabilities on hand. The Quantum Lab, a facility within the NanoteQ Lab, is home base to transport, magneto-transport, and a RF test bench for Qubit fidelity and tomography. The lab can work down to 300 mK (4K for thermoelectric measurements), and has a 12T magnet.
This lab works collaboratively with the transport lab at FAU Germany and with the correlated photon lab at Wake. Moreover, since QL is within the NanoteQ building, iit has access to the cleanroom fabrication facilities as well as a vast array of microscopy systems.

