Quantum computing with collective ensembles of multi-level systems
arXiv:0708.1386 · doi:10.1103/PhysRevLett.99.260501
Abstract
We propose a new physical approach for encoding and processing of quantum information in ensembles of multi-level quantum systems, where the different bits are not carried by individual particles but associated with the collective population of different internal levels. One- and two-bit gates are implemented by collective internal state transitions taking place in the presence of an excitation blockade mechanism which restricts the population of each internal state to the values zero and unity. 10-20 bit quantum computers can be built via this scheme in single trapped clouds of ground state atoms subject to the Rydberg excitation blockade mechanism, and the linear dependence between register size and the number of internal quantum states in atoms offers realistic means to reach larger registers.
4 pages, 4 figures
References in corpus (15)
- Polynomial-Time Algorithms for Prime Factorization and Discrete Logarithms on a Quantum Computer
- Quantum Mechanics helps in searching for a needle in a haystack
- Dipole Blockade and Quantum Information Processing in Mesoscopic Atomic Ensembles
- Fast quantum gates for neutral atoms
- Two-Bit Gates are Universal for Quantum Computation
- Hybrid Quantum Processors: molecular ensembles as quantum memory for solid state circuits
- Molecular Quantum Computing by an Optimal Control Algorithm for Unitary Transformations
- Analysis of a quantum logic device based on dipole-dipole interactions of optically trapped Rydberg atoms
- Tackling Systematic Errors in Quantum Logic Gates with Composite Rotations
- Single-Photon Generation from Stored Excitation in an Atomic Ensemble
- Long-range interactions and entanglement of slow single-photon pulses
- Efficient fault-tolerant quantum computing
- Capacitive coupling of atomic systems to mesoscopic conductors
- Zeros of Rydberg-Rydberg Foster Interactions
- Entangling single and atom qubits for fast quantum state detection and transmission
Cited by in corpus (92)
- Quantum information with Rydberg atoms
- Quantum interface between light and atomic ensembles
- Observation of Rydberg blockade between two atoms
- Quantum computing with atomic qubits and Rydberg interactions: Progress and challenges
- Quantum computing with an electron spin ensemble
- Rabi flopping between ground and Rydberg states with dipole-dipole atomic interactions
- Robust encoding of a qubit in a molecule
- Microscopy of a scalable superatom
- Coherence and Rydberg blockade of atomic ensemble qubits
- Quantum repeaters based on Rydberg-blockade coupled atomic ensembles
- Microwave-Induced Amplitude and Phase Tunable Qubit-Resonator Coupling in Circuit Quantum Electrodynamics
- Scaling the neutral atom Rydberg gate quantum computer by collective encoding in Holmium atoms
- Efficient quantum repeater based on deterministic Rydberg gates
- Rydberg blockade, Förster resonances, and quantum state measurements with different atomic species
- Universal scaling in a strongly interacting Rydberg gas
- Magneto-Optical Trapping of Holmium Atoms
- Cavity Quantum Electrodynamics with a Rydberg blocked atomic ensemble
- Few qubit atom-light interfaces with collective encoding
- Quantum gates in mesoscopic atomic ensembles based on adiabatic passage and Rydberg blockade
- Quantum logic and entanglement by neutral Rydberg atoms: methods and fidelity
- Preparation of hundreds of microscopic atomic ensembles in optical tweezer arrays
- Macroscopic quantum information processing using spin coherent states
- Digital Quantum Simulation with Rydberg Atoms
- Electrometry near a dielectric surface using Rydberg electromagnetically induced transparency
- Quantum computing implementations with neutral particles
- Controlling Dipolar Exchange Interactions in a Dense 3D Array of Large Spin Fermions
- Optimized Geometric Quantum Computation with mesoscopic ensemble of Rydberg Atoms
- Driven-dissipative dynamics of a strongly interacting Rydberg gas
- Efficient Grover search with Rydberg blockade
- Qudit Quantum Computation in the Jaynes-Cummings Model
- Quantum computing with a single molecular ensemble and a Cooper pair box
- Error correction in ensemble registers for quantum repeaters and quantum computers
- A Robust Quantum Random Access Memory
- Dynamics of Low-Density Ultracold Rydberg Gases
- Cold and Ultracold Rydberg Atoms in Strong Magnetic Fields
- Hong-Ou-Mandel Interference between Two Deterministic Collective Excitations in an Atomic Ensemble
- Nonadiabatic holonomic quantum computation with Rydberg superatoms
- Optical trapping of ultracold dysprosium atoms: transition probabilities, dynamic dipole polarizabilities and van der Waals coefficients
- Enhancement of coherent dipole coupling between two atoms via squeezing a cavity mode
- Two-qubit controlled-PHASE Rydberg blockade gate protocol for neutral atoms via off-resonant modulated driving within a single pulse
- Scalable quantum information processing with atomic ensembles and flying photons
- Sub-Poissonian atom number fluctuations by three-body loss in mesoscopic ensembles
- Spontaneous emission and energy shifts of a Rydberg rubidium atom close to an optical nanofiber
- Long-range potentials and molecular resonances in an ultracold rydberg gas
- The Robustness of a Collectively Encoded Rydberg Qubit
- Microtrap arrays on magnetic film atom chips for quantum information science
- Deterministic multi-mode photonic device for quantum information processing
- Quantum repeater with Rydberg blocked atomic ensembles in fiber-coupled cavities
- Semi-Deterministic Entanglement between a Single Photon and an Atomic Ensemble
- Nonadiabatic creation of macroscopic superpositions with strongly correlated 1D bosons on a ring trap
- Analytical solution and entanglement swapping of a double Jaynes-Cummings model in non-Markovian environments
- Heralded high-efficiency quantum repeater with atomic ensembles assisted by faithful single-photon transmission
- Novel Schemes for Directly Measuring Entanglement of General States
- High-efficiency cluster-state generation with atomic ensembles via the dipole-blockade mechanism
- Cluster state generation with atomic ensembles via the dipole blockade mechanism
- Observation of vector and tensor light shifts in 87Rb using near-resonant, stimulated Raman spectroscopy
- Measurement of Holmium Rydberg series through MOT depletion spectroscopy
- Hybrid Topological Quantum Computation with Majorana Fermions: A Cold Atom Setup
- Adiabatic and high-fidelity quantum gates with hybrid Rydberg-Rydberg interactions
- Quantum State Synthesis of Superconducting Resonators
- Fast Entanglement Distribution with Atomic Ensembles and Fluorescent Detection
- Rydberg tomography of an ultra-cold atomic cloud
- Spontaneous emission of a sodium Rydberg atom close to an optical nanofibre
- Simulations of the Dipole-Dipole Interaction between Two Spatially Separated Groups of Rydberg Atoms
- A cold-atoms based processor for deterministic quantum computation with one qubit in intractably large Hilbert spaces
- High teleportation rates using cold-atom ensemble based quantum repeaters with Rydberg blockade
- Experimental Creation of Single Rydberg Excitations via Adiabatic Passage
- Fast and robust quantum computation with ionic Wigner crystals
- Quantum statistics of the collective excitations of an atomic ensemble inside a cavity
- Topological matter with collective encoding and Rydberg blockade
- Quantum Atom Optics: Theory and Applications to Quantum Technology
- Metastable decoherence-free subspaces and electromagnetically induced transparency in interacting many-body systems
- Two-qubit atomic gates: Spatio-temporal control of Rydberg interaction
- Proposal of ensemble qubits with two-atom decay
- Solid state multi-ensemble quantum computer in waveguide circuit model
- Quantum feedback control of atomic ensembles and spinor Bose-Einstein condensates
- Sub-Poissonian atom-number distributions by means of Rydberg dressing and electromagnetically induced transparency
- A quantum register using collective excitations in a Bose-Einstein condensate
- Observation of Cs Rydberg atom macrodimers
- Entangled states from sparsely coupled spins for metrology with neutral atoms
- Stability of macroscopic spin ensembles against inhomogeneous dephasing
- Single photonic qutrit in a collective Rydberg polariton
- Rydberg assisted light shift imbalance induced blockade in an atomic ensemble
- Quantum computer of wire circuit architecture
- Population Dynamics in Cold Gases Resulting from the Long-Range Dipole-Dipole Interaction
- Encoded Universality of Quantum Computations on the Multi-Atomic Ensembles in the QED Cavity
- Manipulation of qubits in non-orthogonal collective storage modes
- Quantum computer with atomic logical qubits encoded on macroscopic three-level systems in common quantum electrodynamic cavity
- Quantum Information Processing with Continuous Variables and Atomic Ensembles
- Quantum optimal control of the Dicke manifold in dipolar Rydberg atom arrays
- Exact quantification of bipartite entanglement in unresolvable spin ensembles
- Quantum Computing on Multi-atomic Ensembles in Quantum Electrodynamics Cavity