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Quantum Krylov Subspace Diagonalization via Time Reversal Symmetries
/ Mariella, Nicola (Unlisted, IE) ; Rico, Enrique (Basque U., Bilbao ; Donostia Intl. Phys. Ctr., San Sebastian ; IKERBASQUE, Bilbao ; CERN) ; Byrne, Adam (Unlisted, IE ; Trinity Coll., Dublin) ; Zhuk, Sergiy (Unlisted, IE)
Krylov quantum diagonalization methods have emerged as a promising use case for quantum computers. [...]
arXiv:2507.22559.
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2025 - 17 p, 17.
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Frustrated Bose ladder with extended range density-density interaction
/ Biswas, Sourav (Donostia Intl. Phys. Ctr., San Sebastian) ; Rico, E. (Donostia Intl. Phys. Ctr., San Sebastian ; Basque U., Bilbao ; CERN ; IKERBASQUE, Bilbao) ; Grass, Tobias (Donostia Intl. Phys. Ctr., San Sebastian ; IKERBASQUE, Bilbao)
When hard-core bosons on a two-leg ladder get frustrated by ring exchange interactions, the elusive d-wave Bose liquid (DBL) can be stabilized, a bosonic analog of a correlated metal. Here, we analyze the effect of extended Hubbard interactions on the DBL phase. [...]
arXiv:2504.00705.-
2025-09-10 - 9 p.
- Published in : Phys. Rev. B 112 (2025) 115122
Fulltext: PDF;
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Oddities in the Entanglement Scaling of the Quantum Six-Vertex Model
/ Pradhan, Sunny (Basque U., Bilbao) ; Cobos, Jesús (Basque U., Bilbao) ; Rico, Enrique (Basque U., Bilbao ; CERN ; Donostia Intl. Phys. Ctr., San Sebastian) ; Sierra, Germán (U. Autonoma, Madrid (main))
We investigate the entanglement properties of the Quantum Six-Vertex Model on a cylinder, focusing on the Shannon-Renyi entropy in the limit of Renyi order $n = \infty$. [...]
arXiv:2502.19152.
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10.
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Real-Time Dynamics in a (2+1)-D Gauge Theory: The Stringy Nature on a Superconducting Quantum Simulator
/ Cobos, Jesús (Basque U., Bilbao) ; Fraxanet, Joana (IBM Watson Res. Ctr.) ; Benito, César (Madrid, IFT) ; di Marcantonio, Francesco (Basque U., Bilbao) ; Rivero, Pedro (IBM Watson Res. Ctr.) ; Kapás, Kornél (Wigner RCP, Budapest) ; Werner, Miklós Antal (Wigner RCP, Budapest) ; Legeza, Örs (Wigner RCP, Budapest ; TUM-IAS, Munich ; DESY) ; Bermudez, Alejandro (Madrid, IFT) ; Rico, Enrique (Basque U., Bilbao ; Donostia Intl. Phys. Ctr., San Sebastian ; CERN)
Understanding the confinement mechanism in gauge theories and the universality of effective string-like descriptions of gauge flux tubes remains a fundamental challenge in modern physics. [...]
CERN-TH-2025-111 ; arXiv:2507.08088.
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25.
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Native Three-Body Interactions in a Superconducting Lattice Gauge Quantum Simulator
/ Busnaina, J.H. (Waterloo U., IQC) ; Shi, Z. (Waterloo U., IQC) ; Alcaine-Cuervo, Jesús M. (Basque U., Bilbao ; U. Basque Country, Leioa) ; Yang, Cindy X. (Waterloo U., IQC) ; Nsanzineza, I. (Waterloo U., IQC) ; Rico, E. (Basque U., Bilbao ; Donostia Intl. Phys. Ctr., San Sebastian ; CERN ; IKERBASQUE, Bilbao) ; Wilson, C.M. (Waterloo U., IQC)
While universal quantum computers remain under development, analog quantum simulators offer a powerful alternative for understanding complex systems in condensed matter, chemistry, and high-energy physics. [...]
arXiv:2501.13383.
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20.
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Ring-exchange physics in a chain of three-level ions
/ Biswas, Sourav (Donostia Intl. Phys. Ctr., San Sebastian) ; Rico, E. (Donostia Intl. Phys. Ctr., San Sebastian ; Basque U., Bilbao ; CERN) ; Grass, Tobias (Donostia Intl. Phys. Ctr., San Sebastian ; Basque U., Bilbao)
In the presence of ring exchange interactions, bosons in a ladder-like lattice may form the bosonic analogon of a correlated metal, known as the d-wave Bose liquid (DBL). In this paper, we show that a chain of trapped ions with three internal levels can mimic a ladder-like system constrained to a maximum occupation of one boson per rung. [...]
arXiv:2410.06655.-
2025-04-01 - 13 p.
- Published in : Quantum 9 (2025) 1683
Fulltext: 2410.06655 - PDF; document - PDF;
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Order Parameter Discovery for Quantum Many-Body Systems
/ Mariella, Nicola (Unlisted, IE) ; Murphy, Tara (Unlisted, IE ; Cambridge U.) ; Di Marcantonio, Francesco (Basque U., Bilbao) ; Najafi, Khadijeh (IBM Watson Res. Ctr.) ; Vallecorsa, Sofia (CERN) ; Zhuk, Sergiy (Unlisted, IE) ; Rico, Enrique (Basque U., Bilbao ; Donostia Intl. Phys. Ctr., San Sebastian ; IKERBASQUE, Bilbao)
Quantum phase transitions reveal deep insights into the behavior of many-body quantum systems, but identifying these transitions without well-defined order parameters remains a significant challenge. [...]
arXiv:2408.01400.
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15.
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A Two-Way Communication Between High-Energy Physics and Quantum Technologies
/ Rico Ortega, Enrique (speaker)
This talk explores the exciting synergy between high-energy physics (HEP) and quantum technologies. We present results from our interdisciplinary collaboration, showcasing how quantum tools are revolutionizing our understanding of fundamental forces and vice versa.
Simulating the Strong Force: We demonstrate how tensor network algorithms, a powerful technique from quantum information, offer a novel approach to tackle real-time problems in lattice gauge theories (LGT), which are the cornerstone for studying the strong force (QCD) [...]
2024 - 4449.
Theory Colloquia
External link: Event details
In : A Two-Way Communication Between High-Energy Physics and Quantum Technologies
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