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Search Publications by: Jacob Taylor (Fed)

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Displaying 26 - 50 of 78

Double Quantum Dot Floquet Gain Medium

November 7, 2016
Author(s)
Jacob M. Taylor, Michael Gullans, Jason Petta, J. Stehlik, Yinyiu Liu, Christopher Eichler, T Hartke, X Mi
A qubit coupled to a microwave resonator allows the study of fundamental light-matter interactions at the level of single photons1. The paradigm of circuit quantum electrodynam- ics (cQED) enables the generation of classical and non-classical light2–5

Non-equilibrium Transport of Light

October 16, 2016
Author(s)
Jacob M. Taylor, Chiao-Hsuan Wang
Understanding the behavior of light in non-equilibrium scenarios underpins much of quantum optics and optical physics. While lasers provide a severe example of a non-equilibrium problem, recent interests in the near-equilibrium physics of photon `gases'

Framework for learning agents in quantum environments

September 22, 2016
Author(s)
Jacob M. Taylor, Hans Briegel, Vedran Dunjko
In this paper we provide a broad framework for describing learning agents in general quantum environments. We analyze the types of environments which allow for quantum enhancements in learning, by contrasting environments to quantum oracles. We show that

Sisyphus Thermalization of Photons in a Double Quantum Dot

July 29, 2016
Author(s)
Michael Gullans, J. Stehlik, Y.-Y. Liu, Christopher Eichler, Jason Petta, Jacob M. Taylor
A strongly driven quantum system coupled to a thermalizing bath generically evolves into a highly non-thermal state as the external drive competes with the equilibrating force of the bath. We demonstrate a notable exception to this picture for a microwave

Thermometry with Optomechanical Cavities

June 6, 2016
Author(s)
Thomas P. Purdy, Karen E. Grutter, Kartik Srinivasan, Nikolai Klimov, Zeeshan Ahmed, Jacob Taylor
Thermally-driven motion of a nanomechanical resonator may be employed as an absolute thermometer. We experimentally measure radiation pressure shot noise induced quantum correlations to absolutely calibrate the motional signal transduced onto an optical

A Quantum Model of Thermodynamic Mechanical Oscillators

June 2, 2016
Author(s)
Jacob M. Taylor, Chiao-Hsuan Wang
We present a quantum mechanical model of a bath of spins coupled to the elasticity of a material. Motivated by understanding the emergence of thermodynamic restoring forces and oscillations, we show our model reproduces the behavior of a variety of

An Optomechanical Accelerometer with a High-Finesse Hemispherical Optical Cavity

February 22, 2016
Author(s)
Yiliang Bao, Felipe Guzman, Arvind Balijepalli, John Lawall, Jacob Taylor, Thomas W. LeBrun, Jason J. Gorman
A new design for an optomechanical accelerometer is presented. The design includes a hemispherical optical cavity that can achieve high finesse and a proof mass that is well-constrained by silicon nitride beams. Based on previous work and analysis, the

Chemical potential for light

November 19, 2015
Author(s)
Jacob M. Taylor, Mohammad Hafezi, Prabin Adhikari
Photons are not conserved in interactions with other matter. Consequently, when understanding the equation of state and thermodynamics of photons, while we have a concept of temperature for energy conservation, there is no equivalent chemical potential for

Optical Control of Spin-Valley-Orbital States of Group-V Donors in Silicon

November 11, 2015
Author(s)
Michael Gullans, Jacob M. Taylor
We show how to to achieve spin-selective excitation of the valley-orbit states of group-V donors (P, As, Sb, Bi) in silicon using optical fields. We consider two approaches based on exploiting resonant, far-infrared (IR) transitions of the neutral donor or

Injection Locking of a Semiconductor Double Quantum Dot Micromaser

November 2, 2015
Author(s)
Michael Gullans, Y.-Y. Liu, J. Stehlik, Jacob M. Taylor, Jason Petta
The semiconductor double quantum dot (DQD) micromaser generates photons through single electron tunneling events. Charge noise couples to the DQD energy levels, resulting in a maser linewidth that is 100 times larger than the Schawlow-Townes prediction. We

Optomechanical reference accelerometer

September 8, 2015
Author(s)
Oliver Gerberding, Felipe Guzman, John T. Melcher, Jon R. Pratt, Jacob Taylor
We present an opto-mechanical accelerometer device with high dynamic range, high bandwidth and readout noise levels exceeding 10 μg/√Hz . The straightforward assembly and small cost of our device make it a prime candidate to perform on-site calibrations

MEMS optomechanical accelerometry standards

July 8, 2015
Author(s)
Felipe Guzman, Yiliang Bao, Jason J. Gorman, John R. Lawall, Jacob M. Taylor, Thomas W. LeBrun
Current acceleration primary standards reach relative uncertainties of the order of 0.001 and consist of complex test facilities, typically operated at National Metrology Institutes. Our research focuses on the development of silicon mechanical oscillator

Optomechanical Motion Sensors

July 8, 2015
Author(s)
Felipe Guzman, Oliver Gerberding, John T. Melcher, Julian Stirling, Jon R. Pratt, Gordon A. Shaw, Jacob M. Taylor
Compact optical cavities can be combined with motion sensors to yield unprecedented resolution and SI-traceability in areas such as acceleration sensing and atomic force microscopy AFM, among others. We have incorporated Fabry-Perot fiber-optic micro

Tunable Spin Qubit Coupling Mediated by a Multi-Electron Quantum Dot

June 4, 2015
Author(s)
Vanita Srinivasa, Haitan Xu, Jacob M. Taylor
We present an approach for entangling electron spin qubits localized on spatially separated impurity atoms or quantum dots via a multi-electron, two-level quantum dot. The effective exchange interaction mediated by the dot can be understood as the simplest

Phonon Assisted Gain in a Semiconductor Quantum Dot Maser

May 13, 2015
Author(s)
Michael Gullans, Yinyiu Liu, George Stehlik, Jason Petta, Jacob M. Taylor
We develop a microscopic model for the recently demonstrated double quantum dot (DQD) maser. In characterizing the gain of this device we find that, in addition to the direct stimulated emission of photons, there is a large contribution from transitions

Semiconductor Double Quantum Dot Micromaser

January 16, 2015
Author(s)
Michael Gullans, Yinyiu Liu, George Stehlik, Jacob M. Taylor, Jason Petta
The coherent generation of light, from masers to lasers, relies upon the specific structure of the individual emitters that lead to gain. Devices operating as lasers in the few- emitter limit provide opportunities for understanding quantum coherent

Bounds on quantum communication via Newtonian gravity

January 15, 2015
Author(s)
Jacob M. Taylor, Dvir Kafri, G J. Milburn
The classical understanding of gravity yields specific observ- able consequences, the most striking of which is the emergence of a 1/r2 force. In so far as communication can arise via such interactions between distant particles, we can ask what would be

Quantum Nonlinear Optics Near Optomechanical Instabilities

January 9, 2015
Author(s)
Xunnong Xu, Michael Gullans, Jacob Taylor
Optomechanical systems provide a unique platform for observing quantum behavior of macro- scopic objects. However, efforts towards realizing nonlinear behavior at the single photon level have been inhibited by the small size of the radiation pressure

Environment-assisted quantum control of a solid state spin via 2-color coherent dark states

September 7, 2014
Author(s)
Jacob M. Taylor, Jack Hansom, Carsten Schulte, Claire Le Gall, Clemens Matthiesen, Edmund Clarke, Maxime Hugues, Mete Atature
Semiconductor quantum dots (QDs) offer an efficient and scalable interface between single spins and optical photons. However, the solid-state environment of the QD represents an inherent source of noise, generally considered detrimental to coherent control