Quantum gates with neutral atoms: Controlling collisional interactions in time dependent traps

Abstract

We theoretically study specific schemes for performing a fundamental two-qubit quantum gate via controlled atomic collisions by switching microscopic potentials. In particular we calculate the fidelity of a gate operation for a configuration where a potential barrier between two atoms is instantaneously removed and restored after a certain time. Possible implementations could be based on microtraps created by magnetic and electric fields, or potentials induced by laser light.

10 pages, 3 figures

Cited by in corpus (123)

• Atom Interferometers
• Quantum computation with trapped polar molecules
• Atom chip based generation of entanglement for quantum metrology
• Matter-wave interferometry in a double well on an atom chip
• Shortcuts to adiabaticity
• Atom Chips
• Coherence in Microchip Traps
• Fast atomic transport without vibrational heating
• Microoptical Realization of Arrays of Selectively Addressable Dipole Traps: A Scalable Configuration for Quantum Computation with Atomic Qubits
• A Beam Splitter for Guided Atoms on an Atom Chip
• Coherent manipulation of Bose-Einstein condensates with state-dependent microwave potentials on an atom chip
• Radio-frequency dressed state potentials for neutral atoms
• Thermally induced spin flips above an atom chip
• Holographic generation of micro-trap arrays for single atoms
• Adiabatic radio frequency potentials for the coherent manipulation of matter waves
• Trapped-Atom-Interferometer in a Magnetic Microtrap
• Optimal quantum control of Bose Einstein condensates in magnetic microtraps
• Microwave potentials and optimal control for robust quantum gates on an atom chip
• Towards single-atom detection on a chip
• Two-dimensional array of microtraps with atomic shift register on a chip
• Atom-ion quantum gate
• Quantum Information Processing in Optical Lattices and Magnetic Microtraps
• Few-body Bose gases in low dimensions -- a laboratory for quantum dynamics
• Trapping and manipulating neutral atoms with electrostatic fields
• Quantum computing with spatially delocalized qubits
• Thermal spin flips in atom chips
• Quantum logic and entanglement by neutral Rydberg atoms: methods and fidelity
• Permanent magnetic lattices for ultracold atoms and quantum degenerate gases
• Resonator-Aided Single-Atom Detection on a Microfabricated Chip
• Atomic spin decoherence near conducting and superconducting films
• Microwave Control of Atomic Motion in Optical Lattices
• Ramsey interference in one dimensional systems: The full distribution function of fringe contrast as a probe of many-body dynamics
• Improved Error-Scaling for Adiabatic Quantum State Transfer
• A quantum computation architecture using optical tweezers
• The Quantum Speed Limit of Optimal Controlled Phasegates for Trapped Neutral Atoms
• Atom chips in the real world: the effects of wire corrugation
• Disorder Potentials near Lithographically Fabricated Atom Chips
• Quantum computing implementations with neutral particles
• Quantum computing via measurements only
• Quantum phase gate and controlled entanglement with polar molecules
• Quantum computing in optical microtraps based on the motional states of neutral atoms
• Three level atom optics in dipole traps and waveguides
• Optimizing the fast Rydberg quantum gate
• Absorption Imaging of Ultracold Atoms on Atom Chips
• Transporting, splitting and merging of atomic ensembles in a chip trap
• A lattice of microtraps for ultracold atoms based on patterned magnetic films
• Controlling the transport of an ion: Classical and quantum mechanical solutions
• Quasi-condensate growth on an atom chip
• Spin flip lifetimes in superconducting atom chips: BCS versus Eliashberg theory
• Atomtronics with holes: Coherent transport of an empty site in a triple well potential
• Cold atoms probe the magnetic field near a wire
• Coherent Transport of Atomic Quantum States in a Scalable Shift Register
• Theoretical analysis of the implementation of a quantum phase gate with neutral atoms on atom chips
• Periodic Array of Bose-Einstein condensates in a Magnetic Lattice
• Entangling ions in arrays of microscopic traps
• Integrated optical components on atom chips
• Efficient and robust initialization of a qubit register with fermionic atoms
• Optimal control of Bose-Einstein condensates in three dimensions
• Micron-sized atom traps made from magneto-optical thin films
• S-wave quantum entanglement in a harmonic trap
• Prospects for fast Rydberg gates on an atom chip
• A permanent magnetic film atom chip for Bose-Einstein condensation
• Entanglement of group-II-like atoms with fast measurement for quantum information processing
• OCTBEC - A Matlab toolbox for optimal quantum control of Bose-Einstein condensates
• Quantum logic via optimal control in holographic dipole traps
• Fast and scalable quantum information processing with two-electron atoms in optical tweezer arrays
• Creating Ioffe-Pritchard micro-traps from permanent magnetic film with in-plane magnetization
• A simple quantum gate with atom chips
• Cold atoms in videotape micro-traps
• Atom Fock state preparation by trap reduction
• Bose-Hubbard model for universal quantum walk-based computation
• Entanglement generation and multiparticle interferometry with neutral atoms
• Single-ion microwave near-field quantum sensor
• Sub-micron period lattice structures of magnetic microtraps for ultracold atoms on an atom chip
• Fast Rydberg gates without dipole blockade via quantum control
• Tunneling phase gate for neutral atoms in a double-well lattice
• Time-Optimal Control of Collisional $\sqrt{\text{SWAP}}$ Gates in Ultracold Atomic Systems
• Photon-photon gates in Bose-Einstein condensates
• Towards a guided atom interferometer based on a superconducting atom chip
• Cooling toolbox for atoms in optical lattices
• Fast universal two-qubit gate for neutral fermionic atoms in optical tweezers
• Optical superlattice for engineering Hubbard couplings in quantum simulation
• Fast control of interactions in an ultracold two atom system: Managing correlations and irreversibility
• Light assisted collisions in ultra-cold Tm atoms
• Magnetic lattices for ultracold atoms and degenerate quantum gases
• Rydberg Atoms in Magnetic Quadrupole Traps
• Correcting errors in a quantum gate with pushed ions via optimal control
• Scalability of quantum computation with addressable optical lattices
• Rydberg quantum computation with nuclear spins in two-electron neutral atoms
• Robust implementations of Quantum Repeaters
• Electronic Structure of Atoms in Magnetic Quadrupole Traps
• Asymmetric double-well potential for single atom interferometry
• Optimal control theory with arbitrary superpositions of waveforms
• Theoretical study of a cold atom beam splitter
• Quantum Atom Optics: Theory and Applications to Quantum Technology
• Parametric squeezing amplification of Bose-Einstein condensates
• Non-locality of Two Ultracold Trapped Atoms
• Continuous Measurement of Atom-Number Moments of a Bose-Einstein Condensate by Photodetection
• A Reduction-Based Strategy for Optimal Control of Bose-Einstein Condensates
• Single- and two-qubit quantum gates using superimposed optical lattice potentials
• Quantum computation toolbox for decoherence-free qubits using multi-band alkali atoms
• Engineering Entanglement: The Fast-Approach Phase Gate
• Dynamical enhancement of spatial entanglement in massive particles
• Shaking the entropy out of a lattice: atomic filtering by vibrational excitations
• RISQ - reduced instruction set quantum computers
• Continuous-time quantum harmonic oscillator state engineering
• Entangling identical bosons in optical tweezers via exchange interaction
• Quantum computing with magnetic atoms in optical lattices of reduced periodicity
• Two-Qubit Gate Operation on Selected Nearest-Neighbor Neutral Atom Qubits
• Initializing a Quantum Register from Mott Insulator States in Optical Lattices
• Quantum-noise quenching in atomic tweezers
• Coupling between internal spin dynamics and external degrees of freedom in the presence of colored noise
• Efficient Manipulation of Bose-Einstein Condensates in a Double-Well Potential
• Near-threshold scaling of resonant inelastic collisions at ultralow temperatures
• Fabrication of micro-magnetic traps for cold neutral atoms
• Implementation of quantum logic gates using coupled Bose-Einstein condensates
• Quantum Gates Between Distant Qubits via Spin-Independent Scattering
• Bosonic Quantum Dynamics Following Colliding Potential Wells
• Generating scalable entanglement of ultracold bosons in superlattices through resonant shaking
• Protected quantum gates using qubit doublons in dynamical optical lattices
• Adiabaticity in a time-dependent trap: a universal limit for the loss by touching the continuum
• Unitarily manipulating in time and space a Gaussian wave-packet motional state of a single atom in a quadratic potential field
• Encoding a qubit into multilevel subspaces