121 citations · 428 across the 24 of their papers we have counts for
23 papers · 1 filter
Phase information transfer by post-selection in Spin--Mechanical assisted magnetometry
Raúl Coto, Hugo Molinares, Vitalie Eremeev
Quantum information transfer between light-matter-type systems is poised to enable important applications, while also serving as a testbed for theoretical investigation. Such syste…
Room-temperature alignment-free magnetometry with boron vacancies in hot-pressed hexagonal boron nitride
Shuyu Wen, Raul Coto, Peiting Wen +5
Magnetic field sensing is essential for applications in communication, environmental monitoring, and biomedical diagnostics. Quantum sensors based on solid-state spin defects, such…
Engineering non-Markovianity from defect-phonon interactions
Francisco J. González, Diego Tancara, Hossein T. Dinani +2
Understanding defect-phonon interactions in solid-state devices is crucial for improving our current knowledge of quantum platforms. In this work, we develop first-principles calcu…
Kernel-based quantum regressor models learn non-Markovianity
Diego Tancara, Hossein T. Dinani, Ariel Norambuena +2
Quantum machine learning is a growing research field that aims to perform machine learning tasks assisted by a quantum computer. Kernel-based quantum machine learning models are pa…
Physics-informed neural networks for quantum control
Ariel Norambuena, Marios Mattheakis, Francisco J. González +1
Quantum control is a ubiquitous research field that has enabled physicists to delve into the dynamics and features of quantum systems, delivering powerful applications for various…
Dynamical quantum phase transition in diamond: applications in quantum metrology
Francisco J. González, Ariel Norambuena, Raúl Coto
Nonequilibrium dynamics is a paramount scenario for studying quantum systems. The emergence of new features with no equilibrium counterpart, such as dynamical quantum phase transit…
Estimating the degree of non-Markovianity using variational quantum circuits
Hossein T. Dinani, Diego Tancara, Felipe F. Fanchini +2
Several applications of quantum machine learning (QML) rely on a quantum measurement followed by training algorithms using the measurement outcomes. However, recently developed QML…
Polariton-based quantum memristors
Ariel Norambuena, Felipe Torres, Massimiliano Di Ventra +1
Information processing and storing by the same physical system is emerging as a promising alternative to traditional computing platforms. In turn, this requires the realization of…
Decoherence-free quantum register of nuclear spins in diamond
Francisco J. González, Raúl Coto
Solid-state quantum registers are exceptional for storing quantum information at room temperature with long coherence time. Nevertheless, practical applications toward quantum supr…
Steering Interchange of Polariton Branches via Coherent and Incoherent Dynamics
Diego Tancara, Ariel Norambuena, Rubén Peña +3
Controlling light-matter based quantum systems in the strong coupling regime allows for exploring quantum simulation of many-body physics in nowadays architectures. For instance, t…
Estimating the degree of non-Markovianity using machine learning
Felipe F. Fanchini, Göktuğ Karpat, Daniel Z. Rossatto +2
In the last years, the application of machine learning methods has become increasingly relevant in different fields of physics. One of the most significant subjects in the theory o…
From the open Heisenberg model to the Landau-Lifshitz equation
Ariel Norambuena, Andrés Franco, Raúl Coto
Magnetic systems can be described by the classical Landau-Lifshitz (LL) equation or the fully quantum open Heisenberg model. Using the Lindblad master equation and the mean-field a…
Probabilistic magnetometry with two-spin system in diamond
Raúl Coto, Hossein T. Dinani, Ariel Norambuena +2
Solid-state magnetometers like the Nitrogen-Vacancy center in diamond have been of paramount importance for the development of quantum sensing with nanoscale spatial resolution. Th…
Coding closed and open quantum systems in MATLAB: applications in quantum optics and condensed matter
Ariel Norambuena, Diego Tancara, Raúl Coto
We develop a package of numerical simulations implemented in MATLAB to solve complex many-body quantum systems. We focus on widely used examples that include the calculation of the…
Coherence as a measure for non-Markovianity and its applications to color centers in diamond
Ariel Norambuena, Jerónimo R. Maze, Peter Rabl +1
The degree of non-Markovianity of a continuous bath can be quantified by means of the coherence. This simple measure is experimentally accessible through Ramsey spectroscopy, but i…
Ground-state cooling of a nanomechanical oscillator with N spins
Víctor Montenegro, Raúl Coto, Vitalie Eremeev +1
Typical of modern quantum technologies employing nanomechanical oscillators is to demand few mechanical quantum excitations, for instance, to prolong coherence times of a particula…
Macroscopic non-classical state preparation via post-selection
Víctor Montenegro, Raúl Coto, Vitalie Eremeev +1
Macroscopic mechanical qubits are fundamental both to test the classical-quantum boundary and present suitable candidates for quantum information processing. Motivated by these, we…
Generation and protection of Maximally Entangled State between many modes in an optical network with dissipation
Raul Coto, Miguel Orszag, Vitalie Eremeev
We present a three-cavity network model with two modes in each cavity and a non-linear medium that generates a Kerr type interaction via both self-phase and cross-phase modulation…
The power of a control qubit in weak measurements
Raul Coto, Víctor Montenegro, Vitalie Eremeev +2
In the late 80s, a curious effect suggested by Aharanov, Albert and Vaidman opened up new vistas regarding quantum measurements on weakly coupled systems. There, a combination of a…
Selftrapping triggered by losses in cavity QED
Raul Coto, Miguel Orszag, Vitalie Eremeev
In a coupled cavity QED network model, we study the transition from a localized super fluid like state to a delocalized Mott insulator like state, triggered by losses. Without cavi…
Quantum Correlations in Cavity QED Networks
Miguel Orszag, Nellu Ciobanu, Raul Coto +1
We present a Review of the dynamical features such as generation, propagation, distribution, sudden transition and freezing of the various quantum correlation measures, as Concurre…
Determination of the maximum Global Quantum Discord via measurements of excitations in a cavity QED network
Raul Coto, Miguel Orszag
Multipartite Quantum Correlations is one of the most relevant indicator of the quantumness of a system in many body systems. This remarkable feature is in general difficult to char…
Propagation and Distribution of Quantum Correlations in a Cavity QED Network
Raul Coto Cabrera, Miguel Orszag
We study the propagation and distribution of quantum correlations through two chains of atoms inside cavities joined by optical fibers. We consider an effective Hamiltonian for the…