1.1k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of Maryland, College ParkUS611 papers
- Joint Quantum InstituteUS359 papers
- National Institute of Standards and TechnologyUS185 papers
- California Institute of TechnologyUS53 papers
- Massachusetts Institute of TechnologyUS44 papers
- Princeton UniversityUS37 papers
- Harvard UniversityUS31 papers
- University of California, BerkeleyUS31 papers
- IonQ (United States)US28 papers
- University of WaterlooCA26 papers
- University of Colorado BoulderUS24 papers
- DEVCOM Army Research LaboratoryUS23 papers
33 papers · 2 filters
Limitations of semidefinite programs for separable states and entangled games
Aram W. Harrow, Anand Natarajan, Xiaodi Wu
Semidefinite programs (SDPs) are a framework for exact or approximate optimization that have widespread application in quantum information theory. We introduce a new method for usi…
Ultrafast Creation of Large Schrödinger Cat States of an Atom
K. G. Johnson, J. D. Wong-Campos, B. Neyenhuis +2
Mesoscopic quantum superpositions, or Schrödinger cat states, are widely studied for fundamental investigations of quantum measurement and decoherence as well as applications in se…
Fast State Transfer and Entanglement Renormalization Using Long-Range Interactions
Zachary Eldredge, Zhe-Xuan Gong, Jeremy T. Young +3
In short-range interacting systems, the speed at which entanglement can be established between two separated points is limited by a constant Lieb-Robinson velocity. Long-range inte…
Emergent equilibrium in many-body optical bistability
Michael Foss-Feig, Pradeep Niroula, Jeremy T. Young +4
Many-body systems constructed of quantum-optical building blocks can now be realized in experimental platforms ranging from exciton-polariton fluids to ultracold gases of Rydberg a…
Fault-tolerant quantum error detection
N. M. Linke, M. Gutierrez, K. A. Landsman +4
Quantum computers will eventually reach a size at which quantum error correction becomes imperative. Quantum information can be protected from qubit imperfections and flawed contro…
Efficient simulation of sparse Markovian quantum dynamics
Andrew M. Childs, Tongyang Li
Quantum algorithms for simulating Hamiltonian dynamics have been extensively developed, but there has been much less work on quantum algorithms for simulating the dynamics of open…
Quantum-enhanced machine learning
Vedran Dunjko, Jacob M. Taylor, Hans J. Briegel
The emerging field of quantum machine learning has the potential to substantially aid in the problems and scope of artificial intelligence. This is only enhanced by recent successe…
Figures of merit for quantum transducers
Emil Zeuthen, Albert Schliesser, Anders S. Sørensen +1
Recent technical advances have sparked renewed interest in physical systems that couple simultaneously to different parts of the electromagnetic spectrum, thus enabling transductio…
Cooling a harmonic oscillator by optomechanical modification of its bath
Xunnong Xu, Thomas Purdy, Jacob M. Taylor
Optomechanical systems show tremendous promise for high sensitivity sensing of forces and modification of mechanical properties via light. For example, similar to neutral atoms and…
Correlated photon dynamics in dissipative Rydberg media
Emil Zeuthen, Michael J. Gullans, Mohammad F. Maghrebi +1
Rydberg blockade physics in optically dense atomic media under the conditions of electromagnetically induced transparency (EIT) leads to strong dissipative interactions between sin…
Spectrum estimation of density operators with alkaline-earth atoms
Michael E. Beverland, Jeongwan Haah, Gorjan Alagic +3
We show that Ramsey spectroscopy of fermionic alkaline-earth atoms in a square-well trap provides an efficient and accurate estimate for the eigenspectrum of a density matrix whose…
Hamiltonian Simulation with Optimal Sample Complexity
Shelby Kimmel, Cedric Yen-Yu Lin, Guang Hao Low +2
We investigate the sample complexity of Hamiltonian simulation: how many copies of an unknown quantum state are required to simulate a Hamiltonian encoded by the density matrix of…
Many-body decoherence dynamics and optimised operation of a single-photon switch
Callum R. Murray, Alexey V. Gorshkov, Thomas Pohl
We develop a theoretical framework to characterize the decoherence dynamics due to multi-photon scattering in an all-optical switch based on Rydberg atom induced nonlinearities. By…
Optimal and Secure Measurement Protocols for Quantum Sensor Networks
Zachary Eldredge, Michael Foss-Feig, Jonathan A. Gross +2
Studies of quantum metrology have shown that the use of many-body entangled states can lead to an enhancement in sensitivity when compared to product states. In this paper, we quan…
Adiabatic optimization versus diffusion Monte Carlo
Michael Jarret, Stephen P. Jordan, Brad Lackey
Most experimental and theoretical studies of adiabatic optimization use stoquastic Hamiltonians, whose ground states are expressible using only real nonnegative amplitudes. This ra…
Joint product numerical range and geometry of reduced density matrices
Jianxin Chen, Cheng Guo, Zhengfeng Ji +4
The reduced density matrices of a many-body quantum system form a convex set, whose three-dimensional projection is convex in . The boundary of ma…
Optimized Tomography of Continuous Variable Systems Using Excitation Counting
Chao Shen, Reinier W. Heeres, Phil Reinhold +4
We propose a systematic procedure to optimize quantum state tomography protocols for continuous variable systems based on excitation counting preceded by a displacement operation.…
A Landauer formulation of photon transport in driven systems
Chiao-Hsuan Wang, J. M. Taylor
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 pr…
Self-organization of atoms coupled to a chiral reservoir
Zachary Eldredge, Pablo Solano, Darrick Chang +1
Tightly confined modes of light, as in optical nanofibers or photonic crystal waveguides, can lead to large optical coupling in atomic systems, which mediates long-range interactio…
Expected communication cost of distributed quantum tasks
Anurag Anshu, Ankit Garg, Aram Harrow +1
A central question in classical information theory is that of source compression, which is the task where Alice receives a sample from a known probability distribution and needs to…
Quantum state tomography via reduced density matrices
Tao Xin, Dawei Lu, Joel Klassen +7
Quantum state tomography via local measurements is an efficient tool for characterizing quantum states. However it requires that the original global state be uniquely determined (U…
Mapping constrained optimization problems to quantum annealing with application to fault diagnosis
Zhengbing Bian, Fabian Chudak, Robert Israel +3
Current quantum annealing (QA) hardware suffers from practical limitations such as finite temperature, sparse connectivity, small qubit numbers, and control error. We propose new a…
Basic circuit compilation techniques for an ion-trap quantum machine
Dmitri Maslov
We study the problem of compilation of quantum algorithms into optimized physical-level circuits executable in a quantum information processing (QIP) experiment based on trapped at…
Demonstration of a small programmable quantum computer with atomic qubits
S. Debnath, N. M. Linke, C. Figgatt +3
Quantum computers can solve certain problems more efficiently than any possible conventional computer. Small quantum algorithms have been demonstrated on multiple quantum computing…