106 citations · 531 across the 22 of their papers we have counts for
23 papers
Geodesic steering for rapid dissipative entanglement distribution
Keshav Venkataraman, Pablo Martinez-Azcona, Marko Ljubotina +2
We describe an optimal-control strategy designed to accelerate the dissipative preparation of complex, highly entangled quantum many-body states. Analogous to optimal steering of i…
Immittance formulas for exact blackbox quantization and divergence-free effective models in circuit QED
Philippe Gigon, Peter Rabl, Adrian Parra-Rodriguez
Building on the first-order circuit quantization method [arXiv:2304.12252, arXiv:2401.09120], we provide simple formulas to construct exact Hamiltonians for Josephson-junction-base…
Observation of coherent flux-charge interaction in a gate-tunable fluxonium
Brian D. Isakov, Shikhar Singh, Adrian Parra-Rodriguez +7
Interactions that mix conjugate variables, such as the flux through a circuit element and the charge across it, lie outside the reach of the elementary couplings of superconducting…
Driven two-level systems as a minimal resource for remote entanglement stabilization
Philippe Gigon, Adrian Parra-Rodriguez, Joan Agustí +1
We analyze the autonomous stabilization of remote entanglement by driving two distant qubits with the output of a correlated photon source. By treating the qubits as idealized enta…
Dynamical Regimes of Finite-Length Transmission Lines in Circuit Quantum Electrodynamics
Fabio Borrelli, Giovanni Miano, Adrian Parra-Rodriguez +1
We study the emergence of continuum, discrete-multimode, and single-mode regimes in finite-length transmission lines capacitively coupled to transmon qubits. We show that the appro…
Floquet Topological Frequency-Converting Amplifier
Adrian Parra-Rodriguez, Miguel Clavero-Rubio, Philippe Gigon +3
We introduce a driven-dissipative Floquet model in which a single harmonic oscillator, with both frequency and decay rate modulated, realizes a non-Hermitian synthetic lattice with…
On "Consistent Quantization of Nearly Singular Superconducting Circuits"
I. L. Egusquiza, A. Parra-Rodriguez
The analysis conducted by Rymarz and DiVincenzo (Phys. Rev. X 13, 021017 (2023)) regarding quantization of superconducting circuits is insufficient to justify their general conclus…
Exact quantization of nonreciprocal quasi-lumped electrical networks
A. Parra-Rodriguez, I. L. Egusquiza
Following a consistent geometrical description previously introduced in Parra-Rodriguez et al. (2024), we present an exact method for obtaining canonically quantizable Hamiltonian…
Toolbox for nonreciprocal dispersive models in circuit QED
Lautaro Labarca, Othmane Benhayoune-Khadraoui, Alexandre Blais +1
We provide a systematic method for constructing effective dispersive Lindblad master equations to describe weakly anharmonic superconducting circuits coupled by a generic dissipati…
Geometrical description and Faddeev-Jackiw quantization of electrical networks
A. Parra-Rodriguez, I. L. Egusquiza
In lumped-element electrical circuit theory, the problem of solving Maxwell's equations in the presence of media is reduced to two sets of equations, the constitutive equations enc…
Nonreciprocal devices based on voltage-tunable junctions
Catherine Leroux, Adrian Parra-Rodriguez, Ross Shillito +6
We propose to couple the flux degree of freedom of one mode with the charge degree of freedom of a second mode in a hybrid superconducting-semiconducting architecture. Nonreciproci…
Algebraic canonical quantization of lumped superconducting networks
I. L. Egusquiza, A. Parra-Rodriguez
We present a systematic canonical quantization procedure for lumped-element superconducting networks by making use of a redundant configuration-space description. The algorithm is…
Quantum Fluctuations in Electrical Multiport Linear Systems
A. Parra-Rodriguez, I. L. Egusquiza
We present an extension of the classical Nyquist-Thevenin theorem for multiport classical electrical networks by Twiss to the quantum case. Conversely, we extend the quantum fluctu…
Charge qubits in the USC regime for quantum state transfer
F. A. Cárdenas-López, J. Yu, C. K. Andersen +2
We study the feasibility of reaching the ultrastrong (USC) and deep-strong coupling (DSC) regimes of light-matter interaction, in particular at resonance condition, with a supercon…
Canonical Quantization of Superconducting Circuits
Adrian Parra-Rodriguez
In the quest to produce quantum technology, superconducting networks, working at temperatures just above absolute zero, have arisen as one of the most promising physical implementa…
Canonical quantisation of telegrapher's equations coupled by ideal nonreciprocal elements
A. Parra-Rodriguez, I. L. Egusquiza
We develop a systematic procedure to quantise canonically Hamiltonians of light-matter models of transmission lines coupled through lumped linear lossless ideal nonreciprocal eleme…
Chiral states and nonreciprocal phases in a Josephson junction ring
R. Asensio-Perea, A. Parra-Rodriguez, G. Kirchmair +2
In this work, we propose how to load and manipulate chiral states in a Josephson junction ring in the so called transmon regimen. We characterise these states by their symmetry pro…
Secure quantum remote state preparation of squeezed microwave states
S. Pogorzalek, K. G. Fedorov, M. Xu +10
Quantum communication protocols based on nonclassical correlations can be more efficient than known classical methods and offer intrinsic security over direct state transfer. In pa…
Digital-Analog Quantum Computation
Adrian Parra-Rodriguez, Pavel Lougovski, Lucas Lamata +2
Digital quantum computing paradigm offers highly-desirable features such as universality, scalability, and quantum error correction. However, physical resource requirements to impl…
Canonical circuit quantization with linear nonreciprocal devices
A. Parra-Rodriguez, I. L. Egusquiza, D. P. DiVincenzo +1
Nonreciprocal devices effectively mimic the breaking of time-reversal symmetry for the subspace of dynamical variables that they couple, and can be used to create chiral informatio…
Digital-Analog Quantum Simulations with Superconducting Circuits
Lucas Lamata, Adrian Parra-Rodriguez, Mikel Sanz +1
Quantum simulations consist in the intentional reproduction of physical or unphysical models into another more controllable quantum system. Beyond establishing communication vessel…
Quantum Networks in Divergence-free Circuit QED
A. Parra-Rodriguez, E. Rico, E. Solano +1
Superconducting circuits are one of the leading quantum platforms for quantum technologies. With growing system complexity, it is of crucial importance to develop scalable circuit…
Convergence of the multimode quantum Rabi model of circuit quantum electrodynamics
Mario F. Gely, Adrian Parra-Rodriguez, Daniel Bothner +4
Circuit quantum electrodynamics (QED) studies the interaction of artificial atoms, open transmission lines and electromagnetic resonators fabricated from superconducting electronic…