Papers
Live trends in quantum computing research, updated daily from arXiv.
Total Papers
28,494
This Month
224
Today
0
Research Volume
13,586 papers in 12 months (-18% vs prior quarter)
Research Focus Areas
Papers by research theme (12 months). Hover for details.
Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Learning the Alpha-bits of black holes
P. Hayden, Geoffrey Penington·Jul 16, 2018
When the bulk geometry in AdS/CFT contains a black hole, boundary subregions may be sufficient to reconstruct certain bulk operators if and only if the black hole microstate is known, an example of state dependence. Reconstructions exist for any micr...
Hyperbolic fracton model, subsystem symmetry, and holography. II. The dual eight-vertex model
Han Yan·Jul 16, 2018
We propose that the fracton topological order is a class of toy models for holography. The discovery of AdS/CFT correspondence as a concrete construction of holography, and the subsequent developments including the Ryu-Takanayagi formula of entanglem...
Quantum algorithm for solving linear differential equations: Theory and experiment
T. Xin, Shijie Wei, Jianlian Cui +7 more·Jul 12, 2018
Solving linear differential equations (LDEs) is a hard problem for classical computers, while quantum algorithms have been proposed to be capable of speeding up the calculation. However, they are yet to be realized in experiment as it cannot be easil...
Fault-tolerant quantum metrology
Theodoros Kapourniotis, A. Datta·Jul 11, 2018
We introduce the notion of fault-tolerant quantum metrology to overcome noise beyond our control, associated with sensing the parameter, by reducing the noise in operations under our control, associated with preparing and measuring probes and ancilla...
Pretty good state transfer via adaptive quantum error correction
Akshaya Jayashankar, Prabha Mandayam·Jul 11, 2018
We examine the role of quantum error correction (QEC) in achieving pretty good quantum state transfer over a class of $1$-d spin Hamiltonians. Recasting the problem of state transfer as one of information transmission over an underlying quantum chann...
Dephasing-Insensitive Quantum Information Storage and Processing with Superconducting Qubits.
Q. Guo, Shi-Biao Zheng, Jianwen Wang +11 more·Jul 10, 2018
A central task towards building a practical quantum computer is to protect individual qubits from decoherence while retaining the ability to perform high-fidelity entangling gates involving arbitrary two qubits. Here we propose and demonstrate a deph...
Hybrid Quantum System with Nitrogen-Vacancy Centers in Diamond Coupled to Surface-Phonon Polaritons in Piezomagnetic Superlattices
Peng‐Bo Li, F. Nori·Jul 8, 2018
In spin-based hybrid quantum systems, the spatial modes of collective spin excitations can be used to encode a register of qubits. However, in superconducting circuits the wavelengths of microwave photons are much larger than the dimensions of the sp...
Single-shot energetic-based estimator for entanglement in a half-parity measurement setup
C. Elouard, A. Auffèves, G. Haack·Jul 6, 2018
Producing and certifying entanglement between distant qubits is a highly desirable skill for quantum information technologies. Here we propose a new strategy to monitor and characterize entanglement genesis in a half parity measurement setup, that re...
Encoding a qubit in a trapped-ion mechanical oscillator
C. Fluhmann, T. Nguyen, M. Marinelli +3 more·Jul 3, 2018
The stable operation of quantum computers will rely on error correction, in which single quantum bits of information are stored redundantly in the Hilbert space of a larger system. Such encoded qubits are commonly based on arrays of many physical qub...
Approximate recovery with locality and symmetry constraints
C'edric B'eny, Z. Zimbor'as, F. Pastawski·Jun 27, 2018
Numerous quantum many-body systems are characterized by either fundamental or emergent constraints---such as gauge symmetries or parity superselection for fermions---which effectively limit the accessible observables and realizable operations. Moreov...
Out-of-Time-Ordered-Correlator Quasiprobabilities Robustly Witness Scrambling.
José Raúl González Alonso, Nicole Yunger Halpern, J. Dressel·Jun 25, 2018
Out-of-time-ordered correlators (OTOCs) have received considerable recent attention as qualitative witnesses of information scrambling in many-body quantum systems. Theoretical discussions of OTOCs typically focus on closed systems, raising the quest...
A Universal Training Algorithm for Quantum Deep Learning
Guillaume Verdon, J. Pye, M. Broughton·Jun 25, 2018
We introduce the Backwards Quantum Propagation of Phase errors (Baqprop) principle, a central theme upon which we construct multiple universal optimization heuristics for training both parametrized quantum circuits and classical deep neural networks ...
Resource-efficient verification of quantum computing using Serfling’s bound
Yuki Takeuchi, A. Mantri, T. Morimae +2 more·Jun 24, 2018
Verifying quantum states is central to certifying the correct operation of various quantum information processing tasks. In particular, in measurement-based quantum computing, checking whether correct graph states are generated is essential for relia...
Quantum codes from neural networks
Johannes Bausch, Felix Leditzky·Jun 22, 2018
We examine the usefulness of applying neural networks as a variational state ansatz for many-body quantum systems in the context of quantum information-processing tasks. In the neural network state ansatz, the complex amplitude function of a quantum ...
Experimental quantification of spatial correlations in quantum dynamics
L. Postler, Á. Rivas, P. Schindler +6 more·Jun 21, 2018
Correlations between different partitions of quantum systems play a central role in a variety of many-body quantum systems, and they have been studied exhaustively in experimental and theoretical research. Here, we investigate dynamical correlations ...
Entanglement of bosonic modes through an engineered exchange interaction
Yvonne Y Gao, B. Lester, K. Chou +5 more·Jun 19, 2018
Quantum computation presents a powerful new paradigm for information processing. A robust universal quantum computer can be realized with any well controlled quantum system, but a successful platform will ultimately require the combination of highly ...
Quantum State Merging for Arbitrarily Small-Dimensional Systems
H. Yamasaki, M. Murao·Jun 18, 2018
Recent advances in quantum technology facilitate the realization of information processing using quantum computers at least on the small and intermediate scales of up to several dozens of qubits. We investigate entanglement cost required for one-shot...
From Probabilistic Graphical Models to Generalized Tensor Networks for Supervised Learning
I. Glasser, Nicola Pancotti, J. I. Cirac·Jun 15, 2018
Tensor networks have found a wide use in a variety of applications in physics and computer science, recently leading to both theoretical insights as well as practical algorithms in machine learning. In this work we explore the connection between tens...
Quantum computing with classical bits
C. Wetterich·Jun 15, 2018
Abstract A bit-quantum map relates probabilistic information for Ising spins or classical bits to quantum spins or qubits. Quantum systems are subsystems of classical statistical systems. The Ising spins can represent macroscopic two-level observable...
Unconventional Rydberg pumping and applications in quantum information processing
D. X. Li, X. Shao·Jun 14, 2018
We propose a mechanism of unconventional Rydberg pumping (URP) via simultaneously driving each Rydberg atom by two classical fields with different strengths of Rabi frequencies. This mechanism differs from the general Rydberg blockade or Rydberg anti...