Papers
Live trends in quantum computing research, updated daily from arXiv.
Total Papers
31,937
This Month
336
Today
0
Research Volume
15,923 papers in 12 months (-33% vs prior quarter)
Research Focus Areas
Papers by research theme (12 months). Hover for details.
Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Hyper-parallel Toffoli gate on three-photon system with two degrees of freedom assisted by single-sided optical microcavities.
Hai‐Rui Wei, Fuguo Deng, G. Long·Aug 8, 2016
Encoding qubits in multiple degrees of freedom (DOFs) of a quantum system allows less-decoherence quantum information processing with much less quantum resources. We present a compact and scalable quantum circuit to determinately implement a hyper-pa...
A computational workflow for designing silicon donor qubits
T. Humble, M. Ericson, J. Jakowski +6 more·Aug 4, 2016
Developing devices that can reliably and accurately demonstrate the principles of superposition and entanglement is an on-going challenge for the quantum computing community. Modeling and simulation offer attractive means of testing early device desi...
A modified Stern-Gerlach experiment using a quantum two-state magnetic field
R. Daghigh, Michael D. Green, C. J. West +1 more·Aug 4, 2016
The Stern-Gerlach experiment has played an important role in our understanding of quantum behavior. We propose and analyze a modified version of this experiment where the magnetic field of the detector is in a quantum superposition, which may be expe...
Observation of Majorization Principle for quantum algorithms via 3-D integrated photonic circuits
Fulvio Flamini, Niko Viggianiello, Taira Giordani +7 more·Aug 3, 2016
The Majorization Principle is a fundamental statement governing the dynamics of information processing in optimal and efficient quantum algorithms. While quantum computation can be modeled to be reversible, due to the unitary evolution undergone by t...
Quantum Simulation of Generic Many-Body Open System Dynamics Using Classical Noise.
A. Chenu, M. Beau, Jianshu Cao +1 more·Aug 3, 2016
We introduce a scheme for the quantum simulation of many-body decoherence based on the unitary evolution of a stochastic Hamiltonian. Modulating the strength of the interactions with stochastic processes, we show that the noise-averaged density matri...
Hybrid Quantum-Classical Approach to Quantum Optimal Control.
Jun Li, Xiaodong Yang, Xinhua Peng +1 more·Aug 2, 2016
A central challenge in quantum computing is to identify more computational problems for which utilization of quantum resources can offer significant speedup. Here, we propose a hybrid quantum-classical scheme to tackle the quantum optimal control pro...
Quantum Communication Complexity of Distributed Set Joins
S. Jeffery, F. Gall·Aug 1, 2016
Computing set joins of two inputs is a common task in database theory. Recently, Van Gucht, Williams, Woodruff and Zhang [PODS 2015] considered the complexity of such problems in the natural model of (classical) two-party communication complexity and...
Polarization-basis tracking scheme for quantum key distribution using revealed sifted key bits.
Yuyang Ding, Wei Chen, Hua Chen +6 more·Aug 1, 2016
The calibration of the polarization basis between the transmitter and receiver is an important task in quantum key distribution. A continuously working polarization-basis tracking scheme (PBTS) will effectively promote the efficiency of the system an...
Characterizing quantum supremacy in near-term devices
S. Boixo, S. Isakov, V. Smelyanskiy +6 more·Jul 31, 2016
A critical question for quantum computing in the near future is whether quantum devices without error correction can perform a well-defined computational task beyond the capabilities of supercomputers. Such a demonstration of what is referred to as q...
Multiple-output microwave single-photon source using superconducting circuits with longitudinal and transverse couplings
X. Wang, A. Miranowicz, Hong-rong Li +1 more·Jul 29, 2016
Single-photon devices at microwave frequencies are important for applications in quantum information processing and communication in the microwave regime. In this work we describe a proposal of a multioutput single-photon device. We consider two supe...
Observation of topological Uhlmann phases with superconducting qubits
O. Viyuela, O. Viyuela, O. Viyuela +5 more·Jul 29, 2016
Topological insulators and superconductors at finite temperature can be characterized by the topological Uhlmann phase. However, a direct experimental measurement of this invariant has remained elusive in condensed matter systems. Here, we report a m...
Multifunctional all-dielectric nano-optical systems using collective multipole Mie resonances: toward on-chip integrated nanophotonics
Swarnabha Chattaraj, A. Madhukar·Jul 29, 2016
We present an analysis of the optical response of a class of on-chip integrated nanophotonic systems comprising all-dielectric building-block-based multifunctional light manipulating units (LMU) integrated with quantum dot (QD) light sources. Multipl...
Benchmarking of dynamically corrected gates for the exchange-only spin qubit in a 1 /f noise environment
Chengxian Zhang, Xu-Chen Yang, Xin Wang·Jul 27, 2016
We study theoretically the responses of the dynamically corrected gates to time-dependent noises in the exchange-only spin qubit system. We consider $1/f$ noises having spectra proportional to $1/\omega^\alpha$, where the exponent $\alpha$ indicates ...
Comparison between quantum jumps and master equation in the presence of a finite environment.
S. Suomela, R. Sampaio, T. Ala‐Nissila·Jul 22, 2016
We study the equivalence between the recently proposed finite environment quantum jump model and a master equation approach. We derive microscopically the master equation for a qubit coupled to a finite bosonic environment and show that the master eq...
Hot Carrier Transportation Dynamics in InAs/GaAs Quantum Dot Solar Cell
T. Sogabe, K. Nii, K. Sakamoto +2 more·Jul 22, 2016
The hot carrier dynamics and its effect on the device performance of GaAs solar cell and InAs/GaAs quantum dot solar cell (QDSC) was investigated. At first, the fundamental operation feature of conventional hot carrier solar cell was simulated based ...
Tensor-Network Simulations of the Surface Code under Realistic Noise.
A. Darmawan, D. Poulin·Jul 21, 2016
The surface code is a many-body quantum system, and simulating it in generic conditions is computationally hard. While the surface code is believed to have a high threshold, the numerical simulations used to establish this threshold are based on simp...
Cryogenic setup for trapped ion quantum computing.
M. F. Brandl, M. Mourik, L. Postler +15 more·Jul 18, 2016
We report on the design of a cryogenic setup for trapped ion quantum computing containing a segmented surface electrode trap. The heat shield of our cryostat is designed to attenuate alternating magnetic field noise, resulting in 120 dB reduction of ...
Quantum Computation using Arrays of N Polar Molecules in Pendular States.
Qi Wei, Yudong Cao, S. Kais +2 more·Jul 18, 2016
We investigate several aspects of realizing quantum computation using entangled polar molecules in pendular states. Quantum algorithms typically start from a product state |00⋯0⟩ and we show that up to a negligible error, the ground states of polar m...
Entanglement, coherence, and redistribution of quantum resources in double spontaneous down-conversion processes
David Edward Bruschi, C. Sab'in, G. Paraoanu·Jul 18, 2016
We study the properties of bi-squeezed tripartite Gaussian states created by two spontaneous parametric down-conversion processes that share a common idler. We give a complete description of the quantum correlations across of all partitions, as well ...
The Ryu–Takayanagi Formula from Quantum Error Correction
D. Harlow·Jul 13, 2016
I argue that a version of the quantum-corrected Ryu–Takayanagi formula holds in any quantum error-correcting code. I present this result as a series of theorems of increasing generality, with the final statement expressed in the language of operator-...