A hybrid quantum algorithm to detect conical intersections
In this paper, the authors propose a hybrid quantum classical algorithm to resolve the conical intersections with the help of the Berry phase.
Koridon, E., Fraxanet, J., Dauphin, A., Visscher, L., O'Brien, T. E., and Polla, S., Quantum 8, 1259 (2024), DOI: 10.22331/q-2024-02-20-1259.
Amorphous quantum magnets in a two-dimensional Rydberg atom array
In this article, the authors propose to explore amorphous quantum magnets with an analog quantum simulator.
Julià-Farré, S., Vovrosh, J., & Dauphin, A. (2024). arXiv preprint. DOI: 10.48550/arXiv.2402.02852.
Efficient thermalization and universal quantum computing with quantum Gibbs samplers
In this paper, the authors prove that a recently introduced, efficiently implementable dissipative evolution thermalizes to the Gibbs state in time scaling polynomially with system size at high enough temperatures, and for any Hamiltonian that satisfies a Lieb-Robinson bound, such as local Hamiltonians on a lattice.
Rouzé, Cambyse, Daniel Stilck França, and Álvaro M. Alhambra. "Efficient thermalization and universal quantum computing with quantum Gibbs samplers." arXiv preprint. DOI: 10.48550/arXiv.2403.12691.
Enriching diagrams with algebraic operations
In this paper, the authors extend diagrammatic reasoning in monoidal categories with algebraic operations and equations.
Villoria, A., Basold, H., & Laarman, A. (2023). arXiv preprint. DOI: 10.48550/arXiv.2310.11288.
Equivariant quantum circuits for learning on weighted graphs
In this work, we introduce an ansatz for learning tasks on weighted graphs that respects an important graph symmetry, namely equivariance under node permutations.
Skolik, A., Cattelan, M., Yarkoni, S., Bäck, T., & Dunjko, V. npj Quantum Inf 9, 47 (2023). DOI: 10.1038/s41534-023-00710-y.
Noise-induced shallow circuits and absence of barren plateaus
In this paper, the authors study the impact of uncorrected noise on quantum circuits, starting by showing that any noise `truncates' most quantum circuits to effectively logarithmic depth, in the task of computing Pauli expectation values.
Mele, Antonio Anna, Armando Angrisani, Soumik Ghosh, Sumeet Khatri, Jens Eisert, Daniel Stilck França, and Yihui Quek. "Noise-induced shallow circuits and absence of barren plateaus." arXiv preprint. DOI: 10.48550/arXiv.2403.13927.
On the expressivity of embedding quantum kernels
In this paper, the authors raise the fundamental question: can all quantum kernels be expressed as the inner product of quantum feature states?
Gil-Fuster, E., Eisert, J., & Dunjko, V. (2023). Machine Learning: Science and Technology. DOI: 10.1088/2632-2153/ad2f51.
Quantized Thouless pumps protected by interactions in dimerized Rydberg tweezer arrays
In this paper, the authors study Thouless pumps, i.e., adiabatic topological transport, in an interacting spin chain described by the dimerized XXZ Hamiltonian.
Julià-Farré, S., Argüello-Luengo, J., Henriet, L., & Dauphin, A. (2024). arXiv preprint. DOI: 10.48550/arXiv.2402.09311.
Shallow quantum circuits for deeper problems
This work investigates to what extent it is possible to mimic the performance of a deeper quantum computation by using a shallower device many times.
Pérez-Salinas, A., Draškić, R., Tura, J., and Dunjko, V., Phys. Rev. A 108, 062423. DOI: 10.1103/PhysRevA.108.062423.
Variational protocols for emulating digital gates using analog control with always-on interactions
In this paper, the authors design variational pulse sequences tailored for neutral atom quantum simulators and show that we can engineer layers of single-qubit and multi-qubit gates.
Chevallier, C., Vovrosh, J., de Hond, J., Dagrada, M., Dauphin, A., & Elfving, V. E. (2024). arXiv preprint. DOI: 10.48550/arXiv.2402.07653.
