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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.

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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). 

10.1021/acsphotonics.4c00721

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). 

10.1002/adom.202402502

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.

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Resources

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© 2025 by NanoteQ @ Wake.

 

Wake Forest University is a small, selective, research university located in Winston-Salem NC. It has  a long tradition of innovation in the biomedical and physical sciences.  NanoteQ is a unit of WFU serving as a university-wide  central facility for specialized equipment and capabilities. Images and data content of this website are the property of WFU and its affiliate colleges. NanoteQ @ Wake reserves editorial right of access to commentary on these pages. Opinions expressed are not those of the University and the site does not represent binding policy by the University.

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