128 citations · 965 across the 34 of their papers we have counts for
34 papers
Critical Berezinskii-Kosterlitz-Thouless dynamics in the archetypal two-dimensional spin system BaCuSiOCl
K. M. Ranjith, Maxime Dupont, Steffen Krämer +6
We study the spin dynamics in the quasi-2D spin- dimer compound BaCuSiOCl, which exhibits a magnetic field-induced Bose-Einstein condensate (BEC) of triplons.…
Design and execution of quantum circuits using tens of superconducting qubits and thousands of gates for dense Ising optimization problems
Filip B. Maciejewski, Stuart Hadfield, Benjamin Hall +13
We develop a hardware-efficient ansatz for variational optimization, derived from existing ansatze in the literature, that parametrizes subsets of all interactions in the Cost Hami…
Extending relax-and-round combinatorial optimization solvers with quantum correlations
Maxime Dupont, Bhuvanesh Sundar
We introduce a relax-and-round approach embedding the quantum approximate optimization algorithm (QAOA) with layers. We show for many problems, including Sherrington-Kirk…
Quantum-Enhanced Greedy Combinatorial Optimization Solver
Maxime Dupont, Bram Evert, Mark J. Hodson +13
Combinatorial optimization is a broadly attractive area for potential quantum advantage, but no quantum algorithm has yet made the leap. Noise in quantum hardware remains a challen…
Multipartite entanglement in the 1-D spin- Heisenberg Antiferromagnet
Varun Menon, Nicholas E. Sherman, Maxime Dupont +3
Multipartite entanglement refers to the simultaneous entanglement between multiple subsystems of a many-body quantum system. While multipartite entanglement can be difficult to qua…
Simulating dirty bosons on a quantum computer
Lindsay Bassman Oftelie, Roel Van Beeumen, Daan Camps +2
The physics of dirty bosons highlights the intriguing interplay of disorder and interactions in quantum systems, playing a central role in describing, for instance, ultracold gases…
Spectral function of the Heisenberg model on the triangular lattice
Nicholas E. Sherman, Maxime Dupont, Joel E. Moore
Spectral probes, such as neutron scattering, are crucial for characterizing excitations in quantum many-body systems and the properties of quantum materials. Among the most elusive…
Navigating the noise-depth tradeoff in adiabatic quantum circuits
Daniel Azses, Maxime Dupont, Bram Evert +2
Adiabatic quantum algorithms solve computational problems by slowly evolving a trivial state to the desired solution. On an ideal quantum computer, the solution quality improves mo…
An entanglement perspective on the quantum approximate optimization algorithm
Maxime Dupont, Nicolas Didier, Mark J. Hodson +2
Many quantum algorithms seek to output a specific bitstring solving the problem of interest--or a few if the solution is degenerate. It is the case for the quantum approximate opti…
Calibrating the Classical Hardness of the Quantum Approximate Optimization Algorithm
Maxime Dupont, Nicolas Didier, Mark J. Hodson +2
Trading fidelity for scale enables approximate classical simulators such as matrix product states (MPS) to run quantum circuits beyond exact methods. A control parameter, the so-ca…
Witnessing quantum criticality and entanglement in the triangular antiferromagnet KYbSe
A. O. Scheie, E. A. Ghioldi, J. Xing +20
The Heisenberg triangular lattice quantum spin liquid and the phase transitions to nearby magnetic orders have received much theoretical attention, but clear experimental manifesta…
Quantum criticality using a superconducting quantum processor
Maxime Dupont, Joel E. Moore
Quantum criticality emerges from the collective behavior of many interacting quantum particles, often at the transition between different phases of matter. It is one of the corners…
Spatiotemporal Crossover between Low- and High-Temperature Dynamical Regimes in the Quantum Heisenberg Magnet
Maxime Dupont, Nicholas E. Sherman, Joel E. Moore
The stranglehold of low temperatures on fascinating quantum phenomena in one-dimensional quantum magnets has been challenged recently by the discovery of anomalous spin transport a…
Quantum magnetism on small-world networks
Maxime Dupont, Nicolas Laflorencie
While classical spin systems in random networks have been intensively studied, much less is known about quantum magnets in random graphs. Here, we investigate interacting quantum s…
Monolayer CrCl as an ideal Test Bed for the Universality Classes of 2D Magnetism
Maxime Dupont, Yaroslav O. Kvashnin, Mahroo Shiranzaei +3
The monolayer halides CrX (X=Cl, Br, I) attract significant attention for realizing 2D magnets with genuine long-range order (LRO), challenging the Mermin-Wagner theorem. Here,…
Learning the ground state of a non-stoquastic quantum Hamiltonian in a rugged neural network landscape
Marin Bukov, Markus Schmitt, Maxime Dupont
Strongly interacting quantum systems described by non-stoquastic Hamiltonians exhibit rich low-temperature physics. Yet, their study poses a formidable challenge, even for state-of…
Detection of Kardar-Parisi-Zhang hydrodynamics in a quantum Heisenberg spin- chain
A. Scheie, N. E. Sherman, M. Dupont +5
Classical hydrodynamics is a remarkably versatile description of the coarse-grained behavior of many-particle systems once local equilibrium has been established. The form of the h…
Assessment of Reward Functions for Reinforcement Learning Traffic Signal Control under Real-World Limitations
Alvaro Cabrejas-Egea, Shaun Howell, Maksis Knutins +1
Adaptive traffic signal control is one key avenue for mitigating the growing consequences of traffic congestion. Incumbent solutions such as SCOOT and SCATS require regular and tim…
Evidence for deconfined gauge theory at the transition between toric code and double semion
Maxime Dupont, Snir Gazit, Thomas Scaffidi
Building on quantum Monte Carlo simulations, we study the phase diagram of a one-parameter Hamiltonian interpolating between trivial and topological Ising paramagnets in two dimens…
Dirty bosons on the Cayley tree: Bose-Einstein condensation versus ergodicity breaking
Maxime Dupont, Nicolas Laflorencie, Gabriel Lemarié
Building on large-scale quantum Monte Carlo simulations, we investigate the zero-temperature phase diagram of hard-core bosons in a random potential on site-centered Cayley trees w…
From eigenstate to Hamiltonian: Prospects for ergodicity and localization
Maxime Dupont, Nicolas Macé, Nicolas Laflorencie
This paper addresses the so-called inverse problem which consists in searching for (possibly multiple) parent target Hamiltonian(s), given a single quantum state as input. Starting…
Universal spin dynamics in infinite-temperature one-dimensional quantum magnets
Maxime Dupont, Joel E. Moore
We address the nature of spin dynamics in various integrable and non-integrable, isotropic and anisotropic quantum spin- chains, beyond the paradigmatic Heisenberg model…
NMR relaxation in the spin-1 Heisenberg chain
Sylvain Capponi, Maxime Dupont, Anders W. Sandvik +1
We consider the isotropic Heisenberg chain with a finite Haldane gap and use state-of-the-art numerical techniques to investigate its dynamical properties at finite tempe…
Numerical study of the temperature dependence of the NMR relaxation rate across the superfluid-Bose glass transition in one dimension
Maxime Dupont
We study the nuclear magnetic resonance (NMR) spin-lattice relaxation rate in random one-dimensional spin chains as function of the temperature and disorder strength. In th…