Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Shuttle-Exploiting Attacks and Their Defenses in Trapped-Ion Quantum Computers
A. Saki, R. Topaloglu, Swaroop Ghosh·Aug 2, 2021
Trapped-ion (TI) quantum bits are a front-runner technology for quantum computing. TI systems with multiple interconnected traps can overcome the hardware connectivity issue inherent in superconducting qubits and can solve practical problems at scale...
A Quantum Dot Plot Generation Algorithm for Pairwise Sequence Alignment
Joseph Clapis·Jul 23, 2021
The views, opinions and/or findings contained in this report are those of The MITRE Corporation and should not be construed as an official government position, policy, or decision, unless designated by other documentation. Approved for Public Release...
Heat-Driven Electron-Motion in a Nanoscale Electronic Circuit
S. Takada, G. Georgiou, E. Arrighi +8 more·Jul 20, 2021
We study the interaction between two closely spaced but electrically isolated quasi-onedimensional electrical wires by a drag experiment. In this work we experimentally demonstrate the generation of current in an unbiased (drag) wire, which results f...
Optimal metrology with programmable quantum sensors
Christian D. Marciniak, T. Feldker, Ivan Pogorelov +7 more·Jul 5, 2021
Quantum sensors are an established technology that has created new opportunities for precision sensing across the breadth of science. Using entanglement for quantum enhancement will allow us to construct the next generation of sensors that can approa...
Versatile and Concurrent FPGA-Based Architecture for Practical Quantum Communication Systems
A. Stanco, Francesco B. L. Santagiustina, L. Calderaro +5 more·Jul 5, 2021
This article presents a hardware and software architecture, which can be used in those systems that implement practical quantum key distribution (QKD) and quantum random-number generation (QRNG) schemes. This architecture fully exploits the capabilit...
Realizing coherently convertible dual-type qubits with the same ion species
H.-X. Yang, J.-Y. Ma, Y. Wu +7 more·Jun 28, 2021
Trapped ions constitute one of the most promising systems for implementing quantum computing and networking1,2. For large-scale ion-trap-based quantum computers and networks, it is critical to have two types of qubit: one for computation and storage,...
Non-Markovian Quantum Process Tomography
G. White, F. A. Pollock, L. Hollenberg +2 more·Jun 22, 2021
Characterisation protocols have so far played a central role in the development of noisy intermediate-scale quantum (NISQ) computers capable of impressive quantum feats. This trajectory is expected to continue in building the next generation of devic...
OpenSSLNTRU: Faster post-quantum TLS key exchange
D. Bernstein, B. Brumley, Ming-Shing Chen +1 more·Jun 16, 2021
Google's CECPQ1 experiment in 2016 integrated a post-quantum key-exchange algorithm, newhope1024, into TLS 1.2. The Google-Cloudflare CECPQ2 experiment in 2019 integrated a more efficient key-exchange algorithm, ntruhrss701, into TLS 1.3. This paper ...
Reconfigurable continuously-coupled 3D photonic circuit for Boson Sampling experiments
Francesco Hoch, S. Piacentini, Taira Giordani +10 more·Jun 15, 2021
Boson Sampling is a computational paradigm representing one of the most viable and pursued approaches to demonstrate the regime of quantum advantage. Recent results have shown significant technological leaps in single-photon generation and detection,...
Towards quantum 3D imaging devices
C. Abbattista, L. Amoruso, Samuel Burri +23 more·Jun 15, 2021
We introduce a new generation of 3D imaging devices based on quantum plenoptic imaging. Position-momentum entanglement and photon number correlations are exploited to provide a scan-free 3D image after post-processing of the collected light intensity...
Quantum algorithm for Gaussian process regression
Menghan Chen, Gongde Guo, Song Lin +1 more·Jun 12, 2021
In this paper, a quantum algorithm based on gaussian process regression model is proposed. The proposed quantum algorithm consists of three sub-algorithms. One is the first quantum subalgorithm to efficiently generate mean predictor. The improved HHL...
Noisy intermediate-scale quantum algorithm for semidefinite programming
Kishor Bharti, T. Haug, V. Vedral +1 more·Jun 7, 2021
Semidefinite programs (SDPs) are convex optimization programs with vast applications in control theory, quantum information, combinatorial optimization and operational research. Noisy intermediate-scale quantum (NISQ) algorithms aim to make an efficient...
Realization of a Universal Quantum Gate Set for Itinerant Microwave Photons
K. Reuer, Jean-Claude Besse, Lucien Wernli +5 more·Jun 7, 2021
Deterministic photon-photon gates enable the controlled generation of entanglement between mobile carriers of quantum information. Such gates have thus far been exclusively realized in the optical domain and by relying on post-selection. Here, we pre...
Entanglement Rate Optimization in Heterogeneous Quantum Communication Networks
Mahdi Chehimi, W. Saad·May 30, 2021
Quantum communication networks are emerging as a promising technology that could constitute a key building block in future communication networks in the 6G era and beyond. These networks have an inherent feature of parallelism that allows them to boo...
Automatic design of quantum feature maps
Sergio Altares-López, Ángela Ribeiro, J. Garc'ia-Ripoll·May 26, 2021
We propose a new technique for the automatic generation of optimal ad-hoc ansätze for classification by using quantum support vector machine. This efficient method is based on non-sorted genetic algorithm II multiobjective genetic algorithms which al...
High-speed programmable photonic circuits in a cryogenically compatible, visible–near-infrared 200 mm CMOS architecture
M. Dong, Genevieve Clark, A. Leenheer +7 more·May 26, 2021
Recent advances in photonic integrated circuits have enabled a new generation of programmable Mach–Zehnder meshes (MZMs) realized by using cascaded Mach–Zehnder interferometers capable of universal linear-optical transformations on N input/output opt...
Efficient Quantum Public-Key Encryption From Learning With Errors
Javad Doliskani·May 26, 2021
Our main result is a quantum public-key encryption scheme based on the Extrapolated Dihedral Coset problem (EDCP) which is equivalent, under quantum polynomial-time reductions, to the Learning With Errors (LWE) problem. For limited number of public k...
Deterministic coupling of quantum emitter to surface plasmon polaritons, Purcell enhanced generation of indistinguishable single photons and quantum information processing
Lakshminarayan Sharma, L. Tripathi·May 24, 2021
Abstract Integrated photonic circuits are an integral part of all-optical and on-chip quantum information processing and quantum computer. Deterministically integrated single-photon sources in nanoplasmonic circuits lead to densely packed scalable qu...
Generating time-domain linear cluster state by recycling superconducting qubits
S. Shirai, Yu Zhou, Keiichi Sakata +2 more·May 18, 2021
Cluster states, a type of highly entangled state, are essential resources for quantum information processing. Here we demonstrated the generation of a time-domain linear cluster state (t-LCS) using a superconducting quantum circuit consisting of only...
Coherent manipulation of graph states composed of finite-energy Gottesman-Kitaev-Preskill-encoded qubits
K. Seshadreesan, Prajit Dhara, A. Patil +2 more·May 10, 2021
Graph states are a central resource in measurement-based quantum information processing. In the photonic qubit architecture based on Gottesman-Kitaev-Preskill (GKP) encoding, the generation of high-fidelity graph states composed of realistic, finite-en...