178 citations · 425 across the 15 of their papers we have counts for
15 papers
Detecting quantum noise of a solid-state spin ensemble with dispersive measurement
Mikhail Mamaev, Jayameenakshi Venkatraman, Martin Koppenhöfer +2
We theoretically explore protocols for measuring the spin polarization of an ensemble of solid-state spins, with precision at or below the standard quantum limit. Such measurements…
A spin-embedded diamond optomechanical resonator with mechanical quality factor exceeding one million
Hyunseok Oh, Viraj Dharod, Carl Padgett +13
Diamond optomechanical crystal (OMC) devices with embedded color center spins are promising platforms for a broad range of applications in quantum sensing, networking, and computin…
Characterization of drive-induced unwanted state transitions in superconducting circuits
W. Dai, S. Hazra, D. K. Weiss +11
Microwave drives are essential for implementing control and readout operations in superconducting quantum circuits. However, increasing the drive strength eventually leads to unwan…
Integrated phononic waveguide on thin-film lithium niobate on diamond
Sultan Malik, Felix M. Mayor, Wentao Jiang +6
We demonstrate wavelength-scale phononic waveguides formed by transfer-printed thin-film lithium niobate (LN) on bulk diamond (LNOD), a material stack that combines the strong piez…
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…
Symmetries of Liouvillians of squeeze-driven parametric oscillators
Francesco Iachello, Colin V. Coane, Jayameenakshi Venkatraman
We study the symmetries of the Liouville superoperator of one dimensional parametric oscillators, especially the so-called squeeze-driven Kerr oscillator, and discover a remarkable…
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…
Fast Universal Control of an Oscillator with Weak Dispersive Coupling to a Qubit
Alec Eickbusch, Volodymyr Sivak, Andy Z. Ding +7
A controlled evolution generated by nonlinear interactions is required to perform full manipulation of a quantum system, and such control is only coherent when the rate of nonlinea…
On the static effective Hamiltonian of a rapidly driven nonlinear system
Jayameenakshi Venkatraman, Xu Xiao, Rodrigo G. Cortiñas +2
We present a recursive formula for the computation of the static effective Hamiltonian of a system under a fast-oscillating drive. Our analytical result is well-suited to symbolic…
Experimental implementation of a Raman-assisted six-quanta process
S. O. Mundhada, A. Grimm, J. Venkatraman +9
Nonlinear processes in the quantum regime are essential for many applications, such as quantum-limited amplification, measurement and control of quantum systems. In particular, the…
Resonator reset in circuit QED by optimal control for large open quantum systems
Samuel Boutin, Christian Kraglund Andersen, Jayameenakshi Venkatraman +2
We study an implementation of the open GRAPE (Gradient Ascent Pulse Engineering) algorithm well suited for large open quantum systems. While typical implementations of optimal cont…