Papers
Live trends in quantum computing research, updated daily from arXiv.
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13,591 papers in 12 months (-18% vs prior quarter)
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Implementation of the XY interaction family with calibration of a single pulse
D. Abrams, N. Didier, Blake R. Johnson +2 more·Dec 9, 2019
Near-term applications of quantum information processors will rely on optimized circuit implementations to minimize gate depth and therefore mitigate the impact of gate errors in noisy intermediate-scale quantum (NISQ) computers. More expressive gate...
Linear multi-particle, multi-port interferometers and their matrix representations
Bülent Demirel·Dec 8, 2019
Interferences in multi-path systems for single and multiple particles are theoretically analyzed. A holistic method is presented, which allows to construct the unitary transition matrix describing interferometers for any port number d and particle nu...
Continuous Variables Graph States Shaped as Complex Networks: Optimization and Manipulation
F. Sansavini, V. Parigi·Dec 6, 2019
Complex networks structures have been extensively used for describing complex natural and technological systems, like the Internet or social networks. More recently, complex network theory has been applied to quantum systems, where complex network to...
High-visibility single-shot readout of singlet-triplet qubits in a micromagnet-integrated quadruple quantum dot array
Wonjin Jang, Jehyun Kim, Min-Kyun Cho +5 more·Dec 5, 2019
Fast and high-fidelity quantum state detection is essential for building robust spin-based quantum information processing platforms in semiconductors. The Pauli spin blockade (PSB)-based spin-to-charge conversion and its variants are widely used for ...
Light-Driven Raman Coherence as a Nonthermal Route to Ultrafast Topology Switching in a Dirac Semimetal
C. Vaswani, Lin-Lin Wang, D. Mudiyanselage +14 more·Dec 4, 2019
A grand challenge underlies the entire field of topology-enabled quantum logic and information science: how to establish topological control principles driven by quantum coherence and understand the time-dependence of such periodic driving? Here we d...
Demonstration of minisuperspace quantum cosmology using quantum computational algorithms on IBM quantum computer
Anirban Ganguly, Ritu Dhaulakhandi, B. K. Behera +1 more·Dec 1, 2019
Quantum computers promise to efficiently solve important problems that are intractable on a conventional computer. Quantum computational algorithms have the potential to be an exciting new way of studying quantum cosmology. In quantum cosmology, we l...
Scheduler of quantum circuits based on dynamical pattern improvement and its application to hardware design
G. Guerreschi·Nov 29, 2019
As quantum hardware increases in complexity, successful algorithmic execution relies more heavily on awareness of existing device constraints. In this work we focus on the problem of routing quantum information across the machine to overcome the limi...
Real-time decoding of stabilizer measurements in a bit-flip code
D. Ristè, L. Govia, Brian F. Donovan +5 more·Nov 27, 2019
Although qubit coherence times and gate fidelities are continuously improving, logical encoding is essential to achieve fault tolerance in quantum computing. In most encoding schemes, correcting or tracking errors throughout the computation is necess...
Echoing the recent Google success: Foundational Roots of Quantum Supremacy
A. Khrennikov·Nov 23, 2019
The recent Google's claim on breakthrough in quantum computing is a gong signal for further analysis of foundational roots of (possible) superiority of some quantum algorithms over the corresponding classical algorithms. This note is a step in this d...
Lower Bounds for Function Inversion with Quantum Advice
Kai-Min Chung, Tai-Ning Liao, Luowen Qian·Nov 20, 2019
Function inversion is the problem that given a random function $f: [M] \to [N]$, we want to find pre-image of any image $f^{-1}(y)$ in time $T$. In this work, we revisit this problem under the preprocessing model where we can compute some auxiliary i...
Uniform mixing on integral abelian Cayley graph
X. Cao·Nov 18, 2019
In the past few decades, quantum algorithms have become a popular research area of both mathematicians and engineers. Among them, uniform mixing provides a uniform probability distribution of quantum information over time which attracts a special att...
The Future of Computing: Bits + Neurons + Qubits
D. Gil, W. Green·Nov 15, 2019
The laptops, cell phones, and internet applications commonplace in our daily lives are all rooted in the idea of zeros and ones - in bits. This foundational element originated from the combination of mathematics and Claude Shannon's Theory of Informa...
Monte Carlo studies of modified scalable designs for quantum computation
G. Feng, Jingwei Chen, Hong-Hao Zhang·Nov 15, 2019
As the building blocks of topological quantum computation, Majorana zero modes (MZMs) have attracted tremendous attention in recent years. Scalable mesoscopic island designs with MZMs show great potential in quantum information processing. However, t...
Quantum-inspired Fredkin gate based on spatial modes of light.
Daniel F. Urrego, D. Lopez-Mago, Verónica Vicuña-Hernández +1 more·Nov 15, 2019
Insights gained from quantum physics can inspire novel classical technologies. These quantum-inspired technologies are protocols that aim at mimicking particular features of quantum algorithms. They are generally easier to implement and make use of i...
Thermodynamic analysis of quantum error-correcting engines
G. Landi, A. L. Fonseca de Oliveira, Efrain Buksman·Nov 14, 2019
Quantum error correcting codes can be cast in a way which is strikingly similar to a quantum heat engine undergoing an Otto cycle. In this paper we strengthen this connection further by carrying out a complete assessment of the thermodynamic properti...
Restricted Boltzmann Machines for galaxy morphology classification with a quantum annealer
J. Caldeira, Joshua Job, S. Adachi +2 more·Nov 14, 2019
We present the application of Restricted Boltzmann Machines (RBMs) to the task of astronomical image classification using a quantum annealer built by D-Wave Systems. Morphological analysis of galaxies provides critical information for studying their ...
Complexity and time
César Gómez·Nov 14, 2019
For any quantum algorithm given by a path in the space of unitary operators we define the computational complexity as the typical computational time associated with the path. This time is defined using a quantum time estimator associated with the pat...
Adaptive filtering of projective quantum measurements using discrete stochastic methods
R. Gupta, M. Biercuk·Nov 13, 2019
Adaptive filtering is a powerful class of control theoretic concepts useful in extracting information from noisy data sets or performing forward prediction in time for a dynamic system. The broad utilization of the associated algorithms makes them at...
Transition probabilities in generalized quantum search Hamiltonian evolutions
Steven Gassner, C. Cafaro, S. Capozziello·Nov 12, 2019
A relevant problem in quantum computing concerns how fast a source state can be driven into a target state according to Schrödinger’s quantum mechanical evolution specified by a suitable driving Hamiltonian. In this paper, we study in detail the comp...
Quantum entanglement, supersymmetry, and the generalized Yang-Baxter equation.
Pramod Padmanabhan, Fumihiko Sugino, Diego Trancanelli·Nov 6, 2019
Entangled states, such as the Bell and GHZ states, are generated from separable states using matrices known to satisfy the Yang-Baxter equation and its generalization. This remarkable fact hints at the possibility of using braiding operators as quant...