105 citations · 857 across the 37 of their papers we have counts for
18 papers · 1 filter
Spin squeezing in internal bosonic Josephson junctions via enhanced shortcuts to adiabaticity
Manuel Odelli, Vladimir M. Stojanovic, Andreas Ruschhaupt
We investigate a time-efficient and robust preparation of spin-squeezed states -- a class of states of interest for quantum-enhanced metrology -- in internal bosonic Josephson junc…
Dicke-state preparation through global transverse control of Ising-coupled qubits
Vladimir M. Stojanovic, Julian K. Nauth
We consider the problem of engineering the two-excitation Dicke state in a three-qubit system with all-to-all Ising-type qubit-qubit interaction, which is also…
Digital Quantum Simulation of Scalar Yukawa Coupling
Thierry N. Kaldenbach, Matthias Heller, Gernot Alber +1
Motivated by the revitalized interest in the digital simulation of medium- and high-energy physics phenomena, we investigate the dynamics following a Yukawa-interaction quench on I…
Interconversion of and Greenberger-Horne-Zeilinger states for Ising-coupled qubits with transverse global control
Vladimir M. Stojanovic, Julian K. Nauth
Interconversions of and Greenberger-Horne-Zeilinger states in various physical systems are lately attracting considerable attention. We address this problem in the fairly gener…
Quantum-brachistochrone approach to the conversion from to Greenberger-Horne-Zeilinger states for Rydberg-atom qubits
Julian K. Nauth, Vladimir M. Stojanovic
Using the quantum-brachistochrone formalism, we address the problem of finding the fastest possible (time-optimal) deterministic conversion between and Greenberger-Horne-Zeilin…
Coherent Atom Transport via Enhanced Shortcuts to Adiabaticity: Double-Well Optical Lattice
Sascha H. Hauck, Vladimir M. Stojanovic
Theoretical studies of coherent atom transport have as yet mainly been restricted to one-dimensional model systems with harmonic trapping potentials. Here we investigate this impor…
Dynamical generation of chiral and Greenberger-Horne-Zeilinger states in laser-controlled Rydberg-atom trimers
Thorsten Haase, Gernot Alber, Vladimir M. Stojanovic
Motivated by the significantly improved scalability of optically-trapped neutral-atom systems, extensive efforts have been devoted in recent years to quantum-state engineering in R…
Single-atom transport in optical conveyor belts: Enhanced shortcuts-to-adiabaticity approach
Sascha H. Hauck, Gernot Alber, Vladimir M. Stojanovic
Fast and nearly lossless atomic transport, enabled by moving the confining trap, is a prerequisite for many quantum-technology applications. While theoretical studies of this probl…
Scalable -type entanglement resource in neutral-atom arrays with Rydberg-dressed resonant dipole-dipole interaction
Vladimir M. Stojanovic
While the Rydberg-blockade regime provides the natural setting for creating -type entanglement with cold neutral atoms, it is demonstrated here that a scalable entanglement reso…
Conversion from to Greenberger-Horne-Zeilinger states in the Rydberg-blockade regime of neutral-atom systems: Dynamical-symmetry-based approach
Thorsten Haase, Gernot Alber, Vladimir M. Stojanovic
We investigate the possibilities for a deterministic conversion between two important types of maximally entangled multiqubit states, namely, and Greenberger-Horne-Zeilinger (G…
Bare-Excitation Ground State of a Spinless-Fermion -- Boson Model and -State Engineering in an Array of Superconducting Qubits and Resonators
Vladimir M. Stojanovic
This work unravels an interesting property of a one-dimensional lattice model that describes a single itinerant spinless fermion (excitation) coupled to zero-dimensional (dispersio…
Entanglement-spectrum characterization of ground-state nonanalyticities in coupled excitation-phonon models
Vladimir M. Stojanovic
The polaron concept captures physical situations involving an itinerant quantum particle (excitation) that interacts strongly with bosonic degrees of freedom and becomes heavily bo…
Quantum dynamics of the small-polaron formation in a superconducting analog simulator
Vladimir M. Stojanovic, Igor Salom
We propose a scheme for investigating the nonequilibrium aspects of small-polaron physics using an array of superconducting qubits and microwave resonators. This system, which can…
Feasibility of single-shot realizations of conditional three-qubit gates in exchange-coupled qubit arrays with local control
Vladimir M. Stojanovic
We investigate the feasibility of single-shot Toffoli- and Fredkin-gate realizations in qubit arrays with Heisenberg-type exchange interactions between adjacent qubits. As follows…
Nano-friction in cavity quantum electrodynamics
T. Fogarty, C. Cormick, H. Landa +3
The dynamics of cold trapped ions in a high-finesse resonator results from the interplay between the long-range Coulomb repulsion and the cavity-induced interactions. The latter ar…
Analog Superconducting Quantum Simulator for Holstein Polarons
Feng Mei, Vladimir M. Stojanovic, Irfan Siddiqi +1
We propose an analog quantum simulator for the Holstein molecular-crystal model based on a superconducting circuit QED system in the dispersive regime. By varying the driving field…
Quantum-control approach to realizing a Toffoli gate in circuit QED
Vladimir M. Stojanovic, A. Fedorov, A. Wallraff +1
We study the realization of a Toffoli gate with superconducting qubits in a circuit-QED setup using quantum-control methods. Starting with optimized piecewise-constant control fiel…
Local quantum control of Heisenberg spin chains
Rahel Heule, C. Bruder, Daniel Burgarth +1
Motivated by some recent results of quantum control theory, we discuss the feasibility of local operator control in arrays of interacting qubits modeled as isotropic Heisenberg spi…