617 citations · 2k across the 42 of their papers we have counts for
43 papers
Mediating gates between polar molecules using microwave-dressed Rydberg atoms
Bas Gerritsen, Sean R. Muleady, Arghavan Safavi-Naini +2
We propose a scheme for mediating many simultaneous, fast entangling gates between pairs of polar molecules using Rydberg atoms. By using microwave drives, the dipolar interactions…
Quantum simulation of the Dicke model in a two-dimensional ion crystal
Bryce Bullock, Sean R. Muleady, Jennifer F. Lilieholm +6
Quantum many-body systems driven far from equilibrium can exhibit phase transitions, chaos and entanglement, but probing these phenomena in large, nearly closed systems remains cha…
Optimal Displacement Sensing with Spin-Dependent Squeezed States
Liam J. Bond, Christophe H. Valahu, Athreya Shankar +2
Displacement sensing is a fundamental task in metrology. However, the development of quantum-enhanced sensors that fully utilize the available degrees of freedom in many-body quant…
Multilevel Electromagnetically Induced Transparency Cooling
Katya Fouka, Athreya Shankar, Ting Rei Tan +1
Electromagnetically Induced Transparency (EIT) cooling is a well-established method for preparing trapped ion systems in their motional ground state. However, isolating a three-lev…
Entanglement, information and non-equilibrium phase transitions in long-range open quantum Ising chains
Daniel A. Paz, Benjamin E. Maves, Naushad A. Kamar +2
Non-equilibrium phase transitions of open quantum systems generically exhibit diverging classical but not quantum correlations. Still entanglement -- characterizing the latter corr…
Vibrationally coupled Rydberg atom-ion molecules
Ilango Maran, Liam J. Bond, Jeremy T. Young +2
We study the occurrence of Rydberg atom-ion molecules (RAIMs) in a hybrid atom-ion system with an ion crystal trapped in a Paul trap coupled to Rydberg atoms on its either ends. To…
Phonon-mediated quantum gates in trapped ions coupled to an ultracold atomic gas
Lorenzo Oghittu, Arghavan Safavi-Naini, Antonio Negretti +1
We study the dynamics of phonon-mediated qubit-qubit interactions between trapped ions in the presence of an ultracold atomic gas. By deriving and solving a master equation to desc…
Open quantum dynamics with variational non-Gaussian states and the truncated Wigner approximation
Liam J. Bond, Bas Gerritsen, Jiří Minář +3
We present a framework for simulating the open dynamics of spin-boson systems by combining variational non-Gaussian states with a quantum trajectories approach. We apply this metho…
Emergent Universal Drag Law in a Model of Superflow
Maarten T. M. Christenhusz, Arghavan Safavi-Naini, Halina Rubinsztein-Dunlop +2
Despite the fundamentally different dissipation mechanisms, many laws and phenomena of classical turbulence equivalently manifest in quantum turbulence. The Reynolds law of dynamic…
Global Variational Quantum Circuits for Arbitrary Symmetric State Preparation
Liam J. Bond, Matthew J. Davis, Jiří Minář +3
Quantum states that are symmetric under particle exchange play a crucial role in fields such as quantum metrology and quantum error correction. We use a variational circuit compose…
Engineering spin-spin interactions with optical tweezers in trapped ions
Juan Diego Arias Espinoza, Matteo Mazzanti, Katya Fouka +5
We propose a new method for generating programmable interactions in one- and two-dimensional trapped-ion quantum simulators. Here we consider the use of optical tweezers to enginee…
Saddle-point scrambling without thermalisation
R. A. Kidd, A. Safavi-Naini, J. F. Corney
Out-of-time-order correlators (OTOCs) have proven to be a useful tool for studying thermalisation in quantum systems. In particular, the exponential growth of OTOCS, or scrambling,…
Thermalisation in a Bose-Hubbard dimer with modulated tunneling
Ryan A. Kidd, Arghavan Safavi-Naini, Joel F. Corney
The periodically modulated Bose-Hubbard dimer model offers an experimentally realizable and highly tunable platform for observing the scrambling of quantum information and the appa…
Dynamics of quantum information
R. J. Lewis-Swan, A. Safavi-Naini, A. M. Kaufman +1
The ability to harness the dynamics of quantum information and entanglement is necessary for the development of quantum technologies and the study of complex quantum systems. On th…
Doublon dynamics of Bose-Fermi mixtures in optical lattices
Martin Gärttner, Arghavan Safavi-Naini, Johannes Schachenmayer +1
We study the out-of-equilibrium dynamics of a dilute, lattice-confined Bose-Fermi mixture initialized in a highly excited state consisting of boson-fermion pairs (doublons) occupyi…
Dynamics of an itinerant spin-3 atomic dipolar gas in an optical lattice
Petra Fersterer, Arghavan Safavi-Naini, Bihui Zhu +6
Arrays of ultra-cold dipolar gases loaded in optical lattices are emerging as powerful quantum simulators of the many-body physics associated with the rich interplay between long-r…
Bang-bang shortcut to adiabaticity in the Dicke model as realized in a Penning trap experiment
J. Cohn, A. Safavi-Naini, R. J. Lewis-Swan +7
We introduce a bang-bang shortcut to adiabaticity for the Dicke model, which we implement via a 2-D array of trapped ions in a Penning trap with a spin-dependent force detuned clos…
Modeling near ground-state cooling of two-dimensional ion crystals in a Penning trap using electromagnetically induced transparency
Athreya Shankar, Elena Jordan, Kevin A. Gilmore +3
Penning traps, with their ability to control planar crystals of tens to hundreds of ions, are versatile quantum simulators. Thermal occupations of the motional drumhead modes, tran…
Near ground-state cooling of two-dimensional trapped-ion crystals with more than 100 ions
Elena Jordan, Kevin A. Gilmore, Athreya Shankar +4
We study, both experimentally and theoretically, electromagnetically induced transparency cooling of the drumhead modes of planar 2-dimensional arrays with up to Be$…
Multiworm algorithm quantum Monte Carlo
F. Lingua, B. Capogrosso-Sansone, A. Safavi-Naini +2
We review the path-integral quantum Monte Carlo method and discuss its implementation by multiworm algorithms. We analyze in details the features of the algorithms, and focus our a…
Unifying fast scrambling, thermalization and entanglement through the measurement of FOTOCs in the Dicke model
R. J. Lewis-Swan, A. Safavi-Naini, J. J. Bollinger +1
Scrambling of quantum information is the process by which information initially stored in the local degrees of freedom of a quantum many-body system spreads over its many-body degr…
Verification of a many-ion simulator of the Dicke model through slow quenches across a phase transition
A. Safavi-Naini, R. J. Lewis-Swan, J. G. Bohnet +7
We use a self-assembled two-dimensional Coulomb crystal of ions in the presence of an external transverse field to engineer a simulator of the Dicke Hamiltonian, an iconi…
Quantum dynamics of disordered spin chains with power-law interactions
A. Safavi-Naini, M. L. Wall, O. L. Acevedo +2
We use extensive numerical simulations based on matrix product state methods to study the quantum dynamics of spin chains with strong on-site disorder and power-law decaying ($1/r^…
Exploring adiabatic quantum dynamics of the Dicke model in a trapped ion quantum simulator
A. Safavi-Naini, R. J. Lewis-Swan, J. G. Bohnet +7
We use a self-assembled two-dimensional Coulomb crystal of ions in the presence of an external transverse field to engineer a quantum simulator of the Dicke Hamiltonian.…