Papers
Live trends in quantum computing research, updated daily from arXiv.
Total Papers
27,694
This Month
1,159
Today
0
Research Volume
13,008 papers in 12 months (-3% vs prior quarter)
Research Focus Areas
Papers by research theme (12 months). Hover for details.
Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
On-demand photonic entanglement synthesizer
S. Takeda, Kan Takase, A. Furusawa·Nov 26, 2018
Programmable and on-demand generation of photonic entanglement is enabled by a dynamically controlled loop-based circuit. Quantum information protocols require various types of entanglement, such as Einstein-Podolsky-Rosen, Greenberger-Horne-Zeilinge...
Generating photons from vacuum with counter rotating wave interaction
Hai-Jing Song, Qi-Kai He, Zheng An +1 more·Oct 10, 2018
We propose a bang-bang control scheme to enhance photon generation from the vacuum via the counter-rotating wave (CRW) interaction, and develop a pruning greedy algorithm (PGA) to identify the optimal control sequence. Our numerical results demonstra...
Wavelength assignment in quantum access networks with hybrid wireless-fiber links
S. Bahrani, Osama Elmabrok, Guillermo Curr'as-Lorenzo +1 more·Oct 3, 2018
We propose a low-complexity near-optimal wavelength allocation technique for quantum key distribution access networks that rely on wavelength division multiple access. Such networks would allow users to send quantum and classical signals simultaneous...
Stabilizing Arrays of Photonic Cat States via Spontaneous Symmetry Breaking.
Jos'e Lebreuilly, C. Aron, C. Mora·Sep 27, 2018
The controlled generation and the protection of entanglement is key to quantum simulation and quantum computation. At the single-mode level, protocols based on photonic cat states hold strong promise as they present unprecedentedly long-lived coheren...
Boosting linear-optical Bell measurement success probability with predetection squeezing and imperfect photon-number-resolving detectors
Thomas Kilmer, S. Guha·Sep 25, 2018
Linear optical realizations of Bell state measurement (BSM) on two single-photon qubits succeed with probability $p_s$ no higher than $0.5$. However pre-detection quadrature squeezing, i.e., quantum noise limited phase sensitive amplification, in the...
Quantum optical neural networks
Gregory R. Steinbrecher, J. Olson, D. Englund +1 more·Aug 29, 2018
Physically motivated quantum algorithms for specific near-term quantum hardware will likely be the next frontier in quantum information science. Here, we show how many of the features of neural networks for machine learning can naturally be mapped in...
Parity-Assisted Generation of Nonclassical States of Light in Circuit Quantum Electrodynamics
F. A. Cárdenas-López, G. Romero, L. Lamata +2 more·Aug 21, 2018
We propose a method to generate nonclassical states of light in multimode microwave cavities. Our approach considers two-photon processes that take place in a system composed of N extended cavities and an ultrastrongly coupled light–matter system. Un...
Efficient Quantum Algorithms for GHZ and W States, and Implementation on the IBM Quantum Computer
Diogo Cruz, Romain Fournier, Fabien Gremion +8 more·Jul 15, 2018
Efficient deterministic algorithms are proposed with logarithmic step complexities for the generation of entangled GHZN and WN states useful for quantum networks, and an implementation on the IBM quantum computer up to N=16 is demonstrated. Improved ...
Physics-Inspired Optimization for Quadratic Unconstrained Problems Using a Digital Annealer
Maliheh Aramon, G. Rosenberg, Elisabetta Valiante +3 more·Jun 22, 2018
The Fujitsu Digital Annealer is designed to solve fully connected quadratic unconstrained binary optimization (QUBO) problems. It is implemented on application-specific CMOS hardware and currently solves problems of up to 1024 variables. The Digital ...
Networked Control Systems Secured by Quantum Key Distribution
Haijin Ding, R. Wu, Qian Zhao·May 23, 2018
Cyber-security has become vital for modern networked control systems (NCS). In this paper, we propose that the emerging technology of quantum key distribution (QKD) can be applied to enhance the privacy and security of NCS up to an unbreakable level....
Kolmogorov complexity of sequences of random numbers generated in Bell's experiments
M. Kovalsky, A. Hnilo, M'onica B. Aguero·May 18, 2018
Quantum systems are the ultimate touchstone for the production of random sequences of numbers. Spatially spread entangled systems allow the generation of identical random sequences in remote locations. The impossibility of observing a quantum system,...
Quantum neural networks to simulate many-body quantum systems
Bartłomiej Gardas, M. Rams, J. Dziarmaga·May 14, 2018
We conduct experimental simulations of many body quantum systems using a \emph{hybrid} classical-quantum algorithm. In our setup, the wave function of the transverse field quantum Ising model is represented by a restricted Boltzmann machine. This neu...
Implementing quantum algorithms on temporal photonic cluster states
D. Su, K. Sabapathy, C. Myers +3 more·May 7, 2018
Implementing quantum algorithms is essential for quantum computation. We study the implementation of three quantum algorithms by performing homodyne measurements on a two-dimensional temporal continuous-variable cluster state. We first review the gen...
Bright On-Demand Source of Antibunched Microwave Photons Based on Inelastic Cooper Pair Tunneling
A. Grimm, F. Blanchet, R. Albert +8 more·Apr 27, 2018
Single-photon generation is an important proof of the underlying quantum nature of a physical process and a ubiquitous tool for scientific exploration, with applications ranging from spectroscopy and metrology to quantum computing. In the microwave r...
Integrated photonic platform for quantum information with continuous variables
Francesco Lenzini, J. Janoušek, O. Thearle +10 more·Apr 20, 2018
An integrated optical chip is used for generating, manipulating, and detecting squeezed vacuum and two-mode entanglement. Integrated quantum photonics provides a scalable platform for the generation, manipulation, and detection of optical quantum sta...
Entanglement Generation in Superconducting Qubits Using Holonomic Operations
D. Egger, M. Ganzhorn, G. Salis +6 more·Apr 13, 2018
We investigate a non-adiabatic holonomic operation that enables us to entangle two fixed-frequency superconducting transmon qubits attached to a common bus resonator. Two coherent microwave tones are applied simultaneously to the two qubits and drive...
Two-mode squeezing operator in circuit QED
E. C. Diniz, D. Z. Rossatto, C. Villas-Bôas·Apr 12, 2018
We theoretically investigate the implementation of the two-mode squeezing operator in circuit quantum electrodynamics. Inspired by a previous scheme for optical cavities (Prado et al. in Phys Rev A 73:043803, 2006), we employ a superconducting qubit ...
Controllable Photonic Time-Bin Qubits from a Quantum Dot
J. P. Lee, J. P. Lee, L. Wells +10 more·Apr 2, 2018
Photonic time bin qubits are well suited to transmission via optical fibres and waveguide circuits. The states take the form $\frac{1}{\sqrt{2}}(\alpha \ket{0} + e^{i\phi}\beta \ket{1})$, with $\ket{0}$ and $\ket{1}$ referring to the early and late t...
Designing quantum router in IBM quantum computer
B. K. Behera, Tasnum Reza, Angad Gupta +1 more·Mar 17, 2018
Quantum router is an essential ingredient in a quantum network. Here, we propose a new quantum circuit for designing quantum router by using IBM’s five-qubit quantum computer. We design an equivalent quantum circuit, by means of single-qubit and two-...
Generation of multiphoton entangled quantum states with a single silicon nanowire
Ming Zhang, Lantian Feng, Zhi-yuan Zhou +7 more·Mar 5, 2018
Multiphoton entanglement plays a critical role in quantum information processing, and greatly improves our fundamental understanding of the quantum world. Despite tremendous efforts in either bulk media or fiber-based devices, nonlinear interactions ...