Showing 2018 · quant-phShow all

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quant-ph2018★ 19 cited

Transfer of a quantum state from a photonic qubit to a gate-defined quantum dot

Benjamin Joecker, Pascal Cerfontaine, Federica Haupt +3

Interconnecting well-functioning, scalable stationary qubits and photonic qubits could substantially advance quantum communication applications and serve to link future quantum pro…

quant-ph2018★ 10 cited

Mathematical Models of Markovian Dephasing

Franco Fagnola, John E. Gough, Hendra I. Nurdin +1

We develop a notion of dephasing under the action of a quantum Markov semigroup in terms of convergence of operators to a block-diagonal form determined by irreducible invariant su…

quant-ph2018★ 55 cited

Geometric formalism for constructing arbitrary single-qubit dynamically corrected gates

Junkai Zeng, C. H. Yang, A. S. Dzurak +1

Implementing high-fidelity quantum control and reducing the effect of the coupling between a quantum system and its environment is a major challenge in developing quantum informati…

quant-ph2018★ 46 cited

Benchmarking high fidelity single-shot readout of semiconductor qubits

D. Keith, S. K. Gorman, L. Kranz +4

Determination of qubit initialisation and measurement fidelity is important for the overall performance of a quantum computer. However, the method by which it is calculated in semi…

quant-ph2018★ 171 cited

Gate-based single-shot readout of spins in silicon

A. West, B. Hensen, A. Jouan +8

Electron spins in silicon quantum dots provide a promising route towards realising the large number of coupled qubits required for a useful quantum processor. At present, the requi…

quant-ph2018★ 34 cited

Approaching the adiabatic timescale with machine-learning

Bryce M. Henson, Dong K. Shin, Kieran F. Thomas +4

The control and manipulation of quantum systems without excitation is challenging, due to the complexities in fully modeling such systems accurately and the difficulties in control…

quant-ph2018★ 23 cited

Quantum tunneling dynamics of an interacting Bose-Einstein condensate through a Gaussian barrier

P. Manju, K. S. Hardman, M. A. Sooriyabandara +5

The transmission of an interacting Bose-Einstein condensate incident on a repulsive Gaussian barrier is investigated through numerical simulation. The dynamics associated with inte…

quant-ph2018★ 19 cited

High-fidelity and robust two-qubit gates for quantum-dot spin qubits in silicon

Chia-Hsien Huang, C. H. Yang, Chien-Chang Chen +2

A two-qubit controlled-NOT (CNOT) gate, realized by a controlled-phase (C-phase) gate combined with single-qubit gates, has been experimentally implemented recently for quantum-dot…

quant-ph2018★ 9 cited

Quantum Communications via Satellite with Photon Subtraction

Mingjian He, Robert Malaney, Jonathan Green

Non-Gaussian continuous-variable quantum states represent a pivotal resource in many quantum information protocols. Production of such states can occur through photonic subtraction…

quant-ph2018★ 60 cited

Terahertz Quantum Cryptography

Carlo Ottaviani, Matthew J. Woolley, Misha Erementchouk +4

A well-known empirical rule for the demand of wireless communication systems is that of Edholm's law of bandwidth. It states that the demand for bandwidth in wireless short-range c…

quant-ph2018★ 124 cited

Assessment of a silicon quantum dot spin qubit environment via noise spectroscopy

K. W. Chan, W. Huang, C. H. Yang +8

Preserving coherence long enough to perform meaningful calculations is one of the major challenges on the pathway to large scale quantum computer implementations. Noise coupled fro…

quant-ph2018★ 172 cited

Satellite-Based Continuous-Variable Quantum Communications: State-of-the-Art and a Predictive Outlook

Nedasadat Hosseinidehaj, Robert Malaney, Soon Xin Ng +1

The recent launch of the Micius quantum-enabled satellite heralds a major step forward for long-range quantum communication. Using single-photon discrete-variable quantum states, t…