Authors: Du, Kai; Fang, Xiaochen; Won, Choongjae; De, Chandan; Huang, Fei-Ting; Xu, Wenqian; You, Hoydoo; Gomez-Ruiz, Fernando J.; del Campo, Adolfo; Cheong, Sang-Wook Journal: NATURE PHYSICS Publication date: 2023/06/26 DOI: 10.1038/s41567-023-02112-5 Abstract: The formation of topological defects after a symmetry-breaking phase transition is an overarching phenomenon that encodes the underlying dynamics. The Kibble-Zurek mechanism (KZM) [...]
Authors: Chiesa, A.; Roca, S.; Chicco, S.; de Ory, M. C.; Gomez-Leon, A.; Gomez, A.; Zueco, D.; Luis, F.; Carretta, S. Journal: PHYSICAL REVIEW APPLIED Publication date: 2023/06/21 DOI: 10.1103/PhysRevApplied.19.064060 Abstract: The implementation of a universal quantum processor still poses fundamental issues related to error mitigation and correction, which demand investigation of also platforms and [...]
Authors: Yazdi, Nahid; Garcia-Ripoll, Juan Jose; Porras, Diego; Navarrete-Benlloch, Carlos Journal: NEW JOURNAL OF PHYSICS Publication date: 2023/08/01 DOI: 10.1088/1367-2630/acf0e2 Abstract: We show that a collection of lossy multichromatic modulated qubits can be used to dissipatively engineer arbitrary Gaussian states of a set of bosonic modes. Our ideas are especially suited to superconducting-circuit architectures, where [...]
Authors: Maljkovic, Jelena B.; Vukalovic, Jelena; Pesic, Zoran D.; Blanco, Francisco; Garcia, Gustavo; Marinkovic, Bratislav P. Journal: EUROPEAN PHYSICAL JOURNAL PLUS Publication date: 2023/04/21 DOI: 10.1140/epjp/s13360-023-03967-6 Abstract: We present a combined theoretical and experimental absolute differential (DCS) and integral (ICS) cross sections for elastic electron scattering from halothane molecule in the intermediate energy range from [...]
Authors: Dassonneville, R.; Ramos, T.; Milchakov, V.; Mori, C.; Planat, L.; Foroughi, F.; Naud, C.; Hasch-Guichard, W.; Garcia-Ripoll, J. J.; Roch, N.; Buisson, O. Journal: PHYSICAL REVIEW APPLIED Publication date: 2023/10/19 DOI: 10.1103/PhysRevApplied.20.044050 Abstract: We demonstrate a transmon-qubit readout based on the nonlinear response to a drive of polaritonic meters in situ coupled to the [...]
Authors: Escudero, Francisco; Fernandez-Fernandez, David; Jauma, Gabriel; Penas, Guillermo F.; Pereira, Luciano Journal: PHYSICAL REVIEW APPLIED Publication date: 2023/09/20 DOI: 10.1103/PhysRevApplied.20.034044 Abstract: Variational algorithms have received significant attention in recent years due to their potential to solve practical problems using noisy intermediate-scale quantum (NISQ) devices. A fundamental step of these algorithms is the evaluation of [...]
Authors: Pavlov, Venelin P.; Porras, Diego; Ivanov, Peter A. Journal: PHYSICA SCRIPTA Publication date: 2023/09/01 DOI: 10.1088/1402-4896/ace99f Abstract: We propose two critical dissipative quantum metrology schemes for single parameter estimation which are based on a quantum probe consisting of a coherently driven ensemble of N spin-1/2 particles under the effect of a collective spin decay. [...]
Authors: Tabares, C.; de las Heras, A. Munoz; Tagliacozzo, L.; Porras, D.; Gonzalez-Tudela, A. Journal: PHYSICAL REVIEW LETTERS Publication date: 2023/08/14 DOI: 10.1103/PhysRevLett.131.073602 Abstract: Waveguide QED simulators are analog quantum simulators made by quantum emitters interacting with one-dimensional photonic band gap materials. One of their remarkable features is that they can be used to engineer [...]
Authors: Vega, C.; Porras, D.; Gonzalez-Tudela, A. Journal: PHYSICAL REVIEW RESEARCH Publication date: 2023/04/17 DOI: 10.1103/PhysRevResearch.5.023031 Abstract: Topological insulators feature a number of topologically protected boundary modes linked to the value of their bulk invariant. While in one-dimensional systems the boundary modes are zero dimensional and localized, in two-dimensional topological insulators the boundary modes are [...]
Authors: Diez-Valle, Pablo; Porras, Diego; Garcia-Ripoll, Juan Jose Journal: PHYSICAL REVIEW LETTERS Publication date: 2023/02/02 DOI: 10.1103/PhysRevLett.130.050601 Abstract: In this Letter, we provide analytical and numerical evidence that the single-layer quantum approximate optimization algorithm on universal Ising spin models produces thermal-like states. We find that these pseudo-Boltzmann states can not be efficiently simulated on classical [...]