15 citations · 51 across the 20 of their papers we have counts for
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Periodic orbits and quantum many-body scars in integrable spin chains
Elena Petrova, Maksym Serbyn, Marko Ljubotina
Quantum many-body scars provide an exception to generic thermalising dynamics, but their relation to integrability remains unclear. Here we apply the periodic-orbit framework to th…
Coherent dynamics in chaotic spin chains via interference-protected subspaces
Aron Kerschbaumer, Jean-Yves Desaules, Maksym Serbyn
Generic quantum many-body systems are expected to thermalize, scrambling initial coherence while local observables relax to equilibrium values. Weak ergodicity breaking, often asso…
Systematic construction of quantum many-body scars in frustrated Rydberg arrays
Jean-Yves Desaules, Aron Kerschbaumer, Marko Ljubotina +1
Quantum many-body scars in Rydberg atom arrays have thus far only been observed on bipartite lattices, leaving open the question of whether and how they survive frustration, and wh…
Quasi-solitons in Rydberg atom chains
Aron Kerschbaumer, Jean-Yves Desaules, Marko Ljubotina +1
Solitons - localized wave packets that travel without spreading - play a central role in understanding transport and properties of nonlinear systems. In quantum many-body systems,…
Learning mixed quantum states in large-scale experiments
Matteo Votto, Marko Ljubotina, Cécilia Lancien +5
We present and test a protocol to learn the matrix-product operator (MPO) representation of an experimentally prepared quantum state. The protocol takes as an input classical shado…
Finding periodic orbits in projected quantum many-body dynamics
Elena Petrova, Marko Ljubotina, Gökhan Yalnız +1
Describing general quantum many-body dynamics is a challenging task due to the exponential growth of the Hilbert space with system size. The time-dependent variational principle (T…
Fragmentation, Zero Modes, and Collective Bound States in Constrained Models
Eloi Nicolau, Marko Ljubotina, Maksym Serbyn
Kinetically constrained models were originally introduced to capture slow relaxation in glassy systems, where dynamics are hindered by local constraints instead of energy barriers.…
Nonequilibrium plasmon liquid in a Josephson junction chain
Anton V. Bubis, Lucia Vigliotti, Maksym Serbyn +1
Equilibrium quantum systems are often described by a gas of weakly-interacting normal modes. Bringing such systems far from equilibrium, however, can drastically enhance mode-to-mo…
Tensor Cross Interpolation of Purities in Quantum Many-Body Systems
Dmytro Kolisnyk, Raimel A. Medina, Romain Vasseur +1
A defining feature of quantum many-body systems is the exponential scaling of the Hilbert space with the number of degrees of freedom. This exponential complexity naïvely renders a…
Quantum Many-Body Scars beyond the PXP model in Rydberg simulators
Aron Kerschbaumer, Marko Ljubotina, Maksym Serbyn +1
Persistent revivals recently observed in Rydberg atom simulators have challenged our understanding of thermalization and attracted much interest to the concept of quantum many-body…
A Recursive Lower Bound on the Energy Improvement of the Quantum Approximate Optimization Algorithm
Raimel A. Medina, Maksym Serbyn
The Quantum Approximate Optimization Algorithm (QAOA) uses a quantum computer to implement a variational method with layers of alternating unitary operators, optimized by a cl…
Tangent space generators of matrix product states and exact Floquet quantum scars
Marko Ljubotina, Elena Petrova, Norbert Schuch +1
The advancement of quantum simulators motivates the development of a theoretical framework to assist with efficient state preparation in quantum many-body systems. Generally, prepa…
Many-body entropies and entanglement from polynomially-many local measurements
Benoît Vermersch, Marko Ljubotina, J. Ignacio Cirac +3
Estimating global properties of many-body quantum systems such as entropy or bipartite entanglement is a notoriously difficult task, typically requiring a number of measurements or…