Year: 2025
Type: article
Abstract: Extracting information from quantum many-body systems remains a key challenge in quantum technologies due to experimental limitations. In this work, we employ a single spin qubit to probe a strongly interacting system, creating an environment conducive to qubit decoherence. By focusing on the $XXZ$ spin chain, we observe diverse dynamics in the qubit evolution, reflecting different parameters of the chain. This demonstrates that a spin qubit can probe both quantitative properties of the spin chain and qualitative characteristics, such as the bipartite entanglement entropy, phase transitions, and perturbation propagation velocity within the system. This approach reveals the power of small quantum systems to probe the properties of large, strongly correlated quantum systems.
Institutions: Institute of Photonic Sciences, Czech Academy of Sciences, Institució Catalana de Recerca i Estudis Avançats, Centre National de la Recherche Scientifique, Université Paris Cité, Université Paris Sciences et Lettres, École Normale Supérieure - PSL, Sorbonne Université, Laboratoire de Physique de l'Ecole Normale Supérieure
Language: English
Topic: Quantum many-body systems
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Funders: École Normale Supérieure, “la Caixa” Foundation, Centres de Recerca de Catalunya, Institut de Ciències Fotòniques, European Commission, Ministerstvo Školství, Mládeže a Tělovýchovy, Generalitat de Catalunya, Barcelona Supercomputing Center, QuantERA, European Climate, Infrastructure and Environment Executive Agency, Horizon 2020 Framework Programme, HORIZON EUROPE Framework Programme, Agència de Gestió d'Ajuts Universitaris i de Recerca, European Regional Development Fund, Agencia Estatal de Investigación, H2020 European Research Council, HORIZON EUROPE Marie Sklodowska-Curie Actions, NextGenerationEU
Awards: G1188902550, G120905174, G1255325603, G1272927172, NExt level Quantum information processing for Science and Technology, G1622782223, G162601807, G1681549477, G1761812275, Junior Leader la Caixa Postdoctoral Fellowship Programme: Shaping the new generation of leaders in research, G1888088267, G1908469581, G2049473890, Programmable Atomic Large-scale Quantum Simulation 2 - SGA1, G208869049, G2105798022, G2236380367, G2262748287, G2575991346, G2744780120, G2763573136, G2871827553, G291036901, G2988934680, G3005324705, G3241330029, G3323404375, G3323650233, G3480869486, G348919436, G357246561, G3639969887, G3674674691, G3681454997, G3735356012, G3798495387, G3939077204, G4042783231, G408490004, G4239348134, G425668148, G434337789, G4359800586, G4368799831, G4391008399, G451917667, G4585831268, G4630312626, G4680432388, G4727238542, G4993383890, G5065677113, G5080475149, G5271502856, G531036588, G575169067, G5852091828, QuantERA II ERA-NET Cofund in Quantum Technologies, G5955501538, G5967599077, G5987792135, G6166689270, G6275411036, G6366812625, G6482940084, G6552004136, G6656126374, G6731467812, G6743926034, G679317963, G6835105602, G704744937, G7048927246, G7084143925, G7327758667, G7425137858, G7613962116, G7731791180, G8180681537, G8283979283, Optical Topologic Logic, G8665153912, G8684520763, G8959349008, G941802975
OpenAlex ID: W4409571019