925 citations · 2.5k across the 20 of their papers we have counts for
20 papers
Interaction graph engineering in trapped-ion quantum simulators with global drives
Antonis Kyprianidis, A. J. Rasmusson, Philip Richerme
Trapped-ion quantum simulators have demonstrated a long history of studying the physics of interacting spin-lattice systems using globally addressed entangling operations. Here, we…
QDoor: Exploiting Approximate Synthesis for Backdoor Attacks in Quantum Neural Networks
Cheng Chu, Fan Chen, Philip Richerme +1
Quantum neural networks (QNNs) succeed in object recognition, natural language processing, and financial analysis. To maximize the accuracy of a QNN on a Noisy Intermediate Scale Q…
Quantum Computation of Hydrogen Bond Dynamics and Vibrational Spectra
Philip Richerme, Melissa C. Revelle, Debadrita Saha +10
Calculating the observable properties of chemical systems is often classically intractable and is widely viewed as a promising application of quantum information processing. Yet on…
An open-endcap blade trap for radial-2D ion crystals
Yuanheng Xie, Jiafeng Cui, Marissa D'Onofrio +3
We present the design and experimental demonstration of an open-endcap radio frequency trap to confine ion crystals in the radial-two dimensional (2D) structural phase. The central…
Optimized pulsed sideband cooling and enhanced thermometry of trapped ions
A. J. Rasmusson, Marissa D'Onofrio, Yuanheng Xie +2
Resolved sideband cooling is a standard technique for cooling trapped ions below the Doppler limit to near their motional ground state. Yet, the most common methods for sideband co…
Susceptibility of Trapped-Ion Qubits to Low-Dose Radiation Sources
Jiafeng Cui, A. J. Rasmusson, Marissa D'Onofrio +3
We experimentally study the real-time susceptibility of trapped-ion quantum systems to small doses of ionizing radiation. We expose an ion-trap apparatus to a variety of , ,…
Mapping quantum chemical dynamics problems onto spin-lattice simulators
Debadrita Saha, Srinivasan S. Iyengar, Philip Richerme +2
The accurate computational determination of chemical, materials, biological, and atmospheric properties has critical impact on a wide range of health and environmental problems, bu…
Radial two-dimensional ion crystals in a linear Paul trap
Marissa D'Onofrio, Yuanheng Xie, A. J. Rasmusson +3
We experimentally study two-dimensional (2D) Coulomb crystals in the "radial-2D" phase of a linear Paul trap. This phase is identified by a 2D ion lattice aligned entirely with the…
Floquet Gauge Pumps as Sensors for Spectral Degeneracies Protected by Symmetry or Topology
Abhishek Kumar, Gerardo Ortiz, Philip Richerme +1
We introduce the concept of a Floquet gauge pump whereby a dynamically engineered Floquet Hamiltonian is employed to reveal the inherent degeneracy of the ground state in interacti…
Cryogenic Trapped-Ion System for Large Scale Quantum Simulation
G. Pagano, P. W. Hess, H. B. Kaplan +9
We present a cryogenic ion trapping system designed for large scale quantum simulation of spin models. Our apparatus is based on a segmented-blade ion trap enclosed in a 4 K cryost…
Non-thermalization in trapped atomic ion spin chains
P. W. Hess, P. Becker, H. B. Kaplan +10
Linear arrays of trapped and laser cooled atomic ions are a versatile platform for studying emergent phenomena in strongly-interacting many-body systems. Effective spins are encode…
Observation of Prethermalization in Long-Range Interacting Spin Chains
B. Neyenhuis, J. Smith, A. C. Lee +6
Statistical mechanics can predict thermal equilibrium states for most classical systems, but for an isolated quantum system there is no general understanding on how equilibrium sta…
Long-range Heisenberg models in quasi-periodically driven crystals of trapped ions
A. Bermudez, L. Tagliacozzo, G. Sierra +1
We introduce a theoretical scheme for the analog quantum simulation of long-range XYZ models using current trapped-ion technology. In order to achieve fully-tunable Heisenberg-type…
String order via Floquet interactions in atomic systems
Tony E. Lee, Yogesh N. Joglekar, Philip Richerme
We study the transverse-field Ising model with interactions that are modulated in time. In a rotating frame, the system is described by a time-independent Hamiltonian with many-bod…
2D ion crystals in radiofrequency traps for quantum simulation
Philip Richerme
The computational difficulty of solving fully quantum many-body spin problems is a significant obstacle to understanding the behavior of strongly correlated quantum matter. Experim…
Many-body localization in a quantum simulator with programmable random disorder
Jacob Smith, Aaron Lee, Philip Richerme +6
When a system thermalizes it loses all local memory of its initial conditions. This is a general feature of open systems and is well described by equilibrium statistical mechanics.…
Experimental Realization of a Quantum Integer-Spin Chain with Controllable Interactions
C. Senko, P. Richerme, J. Smith +4
The physics of interacting integer-spin chains has been a topic of intense theoretical interest, particularly in the context of symmetry-protected topological phases. However, ther…
Non-local propagation of correlations in long-range interacting quantum systems
Philip Richerme, Zhe-Xuan Gong, Aaron Lee +6
The maximum speed with which information can propagate in a quantum many-body system directly affects how quickly disparate parts of the system can become correlated and how diffic…
Quantum Catalysis of Magnetic Phase Transitions in a Quantum Simulator
Philip Richerme, Crystal Senko, Simcha Korenblit +5
We control quantum fluctuations to create the ground state magnetic phases of a classical Ising model with a tunable longitudinal magnetic field using a system of 6 to 10 atomic io…
Trapped Antihydrogen in Its Ground State
G. Gabrielse, R. Kalra, W. S. Kolthammer +13
Antihydrogen atoms are confined in an Ioffe trap for 15 to 1000 seconds -- long enough to ensure that they reach their ground state. Though reproducibility challenges remain in mak…