142 citations · 548 across the 27 of their papers we have counts for
28 papers
Precision quantum simulation of magnon spectra and interactions
Trond I. Andersen, Nikita Astrakhantsev, Jeronimo Martinez +329
Quantum simulation promises to advance materials discovery by accurately simulating complex states of matter, their microscopic excitations, and macroscopic response functions. The…
Multifractal and Glassy Signatures of Non-Ergodic 2D Quantum Dynamics
Aleksey Lunkin, Nicole S. Ticea, Michael T. Solomon +296
The fate of ergodicity and localization in disordered, interacting quantum systems in two spatial dimensions remains an outstanding open problem in non-equilibrium physics. Theoret…
Magic state cultivation on a superconducting quantum processor
Emma Rosenfeld, Craig Gidney, Gabrielle Roberts +292
Fault-tolerant quantum computing requires a universal gate set, but the necessary non-Clifford gates represent a significant resource cost for most quantum error correction archite…
Observation of disorder-induced superfluidity
Nicole Ticea, Elias Portoles, Eliott Rosenberg +298
The emergence of states with long-range correlations in a disordered landscape is rare, as disorder typically suppresses the particle mobility required for long-range coherence. Bu…
Reinforcement Learning Control of Quantum Error Correction
Volodymyr Sivak, Alexis Morvan, Michael Broughton +296
Quantum error correction (QEC) is the primary strategy for protecting a quantum computer from the environment. Its prerequisite is that errors must remain sufficiently rare, which…
Quantum computation of molecular geometry via many-body nuclear spin echoes
C. Zhang, R. G. Cortiñas, A. H. Karamlou +320
Quantum-information-inspired experiments in nuclear magnetic resonance spectroscopy may yield a pathway towards determining molecular structure and properties that are otherwise ch…
Unraveling the switching dynamics in a quantum double-well potential
Qile Su, Rodrigo G. Cortiñas, Jayameenakshi Venkatraman +1
The spontaneous switching of a quantum particle between the wells of a double-well potential is a phenomenon of general interest to physics and chemistry. It was broadly believed t…
A Roadmap for Simulating Chemical Dynamics on a Parametrically Driven Bosonic Quantum Device
Delmar G. A. Cabral, Pouya Khazaei, Brandon C. Allen +8
Chemical reactions are commonly described by the reactive flux transferring population from reactants to products across a double-well free energy barrier. Dynamics often involves…
Asymmetry Control in a Parametric Oscillator for the Quantum Simulation of Chemical Activation
Alejandro Cros Carrillo de Albornoz, Rodrigo G. Cortiñas, Max Schäfer +8
Dissipative tunneling remains a cornerstone effect in quantum mechanics. In chemistry, it plays a crucial role in governing the rates of chemical reactions, often modeled as the mo…
Controlled-squeeze gate in superconducting quantum circuits
Nicolás F. Del Grosso, Rodrigo G. Cortiñas, Paula I. Villar +2
We present a method to prepare non-classical states of the electromagnetic field in a microwave resonator. It is based on a controlled gate that applies a squeezing operation on a…
Impact of chaos on the excited-state quantum phase transition of the Kerr parametric oscillator
Ignacio García-Mata, Miguel A. Prado Reynoso, Rodrigo G. Cortiñas +4
The driven Kerr parametric oscillator, of interest to fundamental physics and quantum technologies, exhibits an excited state quantum phase transition (ESQPT) originating in an uns…
Quantum Control of an Oscillator with a Kerr-cat Qubit
Andy Z. Ding, Benjamin L. Brock, Alec Eickbusch +10
Bosonic codes offer a hardware-efficient strategy for quantum error correction by redundantly encoding quantum information in the large Hilbert space of a harmonic oscillator. Howe…
Simulating Chemistry on Bosonic Quantum Devices
Rishab Dutta, Delmar G. A. Cabral, Ningyi Lyu +23
Bosonic quantum devices offer a novel approach to realize quantum computations, where the quantum two-level system (qubit) is replaced with the quantum (an)harmonic oscillator (qum…
Threading an atom with light
Rodrigo G. Cortiñas
We propose a ponderomotive trapping mechanism for circular Rydberg atoms that consists in threading the Rydberg orbital with a tightly focused Gaussian laser beam. The trap exhibit…
Symmetries of the squeeze-driven Kerr oscillator
Francesco Iachello, Rodrigo G. Cortiñas, Francisco Pérez-Bernal +1
We study the symmetries of the static effective Hamiltonian of a driven superconducting nonlinear oscillator, the so-called squeeze-driven Kerr Hamiltonian, and discover a remarkab…
Driving superconducting qubits into chaos
Jorge Chávez-Carlos, Miguel A. Prado Reynoso, Ignacio García-Mata +4
Kerr parametric oscillators are potential building blocks for fault-tolerant quantum computers. They can stabilize Kerr-cat qubits, which offer advantages toward the encoding and m…
Effective versus Floquet theory for the Kerr parametric oscillator
Ignacio García-Mata, Rodrigo G. Cortiñas, Xu Xiao +4
Parametric gates and processes engineered from the perspective of the static effective Hamiltonian of a driven system are central to quantum technology. However, the perturbative e…
Mapping Molecular Hamiltonians into Hamiltonians of Modular cQED Processors
Ningyi Lyu, Alessandro Miano, Ioannis Tsioutsios +7
We introduce a general method based on the operators of the Dyson-Masleev transformation to map the Hamiltonian of an arbitrary model system into the Hamiltonian of a circuit Quant…
Quantum tunneling and level crossings in the squeeze-driven Kerr oscillator
Miguel A. Prado Reynoso, D. J. Nader, Jorge Chávez-Carlos +6
The quasi-energy spectrum recently measured in experiments with a squeeze-driven superconducting Kerr oscillator showed good agreement with the energy spectrum of its corresponding…
A diagrammatic method to compute the effective Hamiltonian of driven nonlinear oscillators
Xu Xiao, Jayameenakshi Venkatraman, Rodrigo G. Cortiñas +2
In this work, we present a new diagrammatic method for computing the effective Hamiltonian of driven nonlinear oscillators. At the heart of our method is a self-consistent perturba…
A driven quantum superconducting circuit with multiple tunable degeneracies
Jayameenakshi Venkatraman, Rodrigo G. Cortinas, Nicholas E. Frattini +2
We present the experimental discovery of multiple simultaneous degeneracies in the spectrum of a Kerr oscillator subjected to a squeezing drive. This squeezing, in combination with…
Spectral kissing and its dynamical consequences in the squeeze-driven Kerr oscillator
Jorge Chávez-Carlos, Talía L. M. Lezama, Rodrigo G. Cortiñas +5
Transmon qubits are the predominant element in circuit-based quantum information processing, such as existing quantum computers, due to their controllability and ease of engineerin…
On the static effective Lindbladian of the squeezed Kerr oscillator
Jayameenakshi Venkatraman, Xu Xiao, Rodrigo G. Cortiñas +1
We derive the static effective Lindbladian beyond the rotating wave approximation (RWA) for a driven nonlinear oscillator coupled to a bath of harmonic oscillators. The associated…
The squeezed Kerr oscillator: spectral kissing and phase-flip robustness
Nicholas E. Frattini, Rodrigo G. Cortiñas, Jayameenakshi Venkatraman +9
By applying a microwave drive to a specially designed Josephson circuit, we have realized an elementary quantum optics model, the squeezed Kerr oscillator. This model displays, as…