Papers
Live trends in quantum computing research, updated daily from arXiv.
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15,374 papers in 12 months (-8% vs prior quarter)
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Generalised Coupling and An Elementary Algorithm for the Quantum Schur Transform
Adam Wills, Sergii Strelchuk·May 6, 2023
The quantum Schur transform is a fundamental building block that maps the computational basis to a coupled basis consisting of irreducible representations of the unitary and symmetric groups. Equivalently, it may be regarded as a change of basis from...
Efficient information recovery from Pauli noise via classical shadow
Yifei Chen, Zhan Yu, Chenghong Zhu +1 more·May 6, 2023
The rapid advancement of quantum computing has led to an extensive demand for effective techniques to extract classical information from quantum systems, particularly in fields like quantum machine learning and quantum chemistry. However, quantum sys...
Collateral Coupling between Superconducting Resonators: Fast High-Fidelity Generation of Qudit-Qudit Entanglement
Pedro Rosario, Alan C. Santos, C. Villas-Bôas +1 more·May 5, 2023
Superconducting circuits are highly controllable platforms to manipulate quantum states, which make them particularly promising for quantum information processing. We here show how the existence of a distance-independent interaction between microwave...
Non-Abelian topological order and anyons on a trapped-ion processor
Mohsin Iqbal, Nathanan Tantivasadakarn, R. Verresen +15 more·May 5, 2023
Non-Abelian topological order is a coveted state of matter with remarkable properties, including quasiparticles that can remember the sequence in which they are exchanged1–4. These anyonic excitations are promising building blocks of fault-tolerant q...
Parallelization of frequency domain quantum gates: manipulation and distribution of frequency-entangled photon pairs generated by a 21 GHz silicon microresonator
Antoine Henry, D. Fioretto, Lorenzo M. Procopio +8 more·May 5, 2023
Abstract. Harnessing the frequency dimension in integrated photonics offers key advantages in terms of scalability, noise resilience, parallelization, and compatibility with telecom multiplexing techniques. Integrated ring resonators have been used t...
Exact Quantum Speed Limits
A. Pati, B. Mohan, Sahil +1 more·May 5, 2023
The traditional quantum speed limits are not attainable for many physical processes, as they tend to be loose and fail to determine the exact time taken by quantum systems to evolve. To address this, we derive exact quantum speed limits for the unita...
Erasure conversion in a high-fidelity Rydberg quantum simulator
P. Scholl, Adam L. Shaw, R. Tsai +3 more·May 5, 2023
Minimizing and understanding errors is critical for quantum science, both in noisy intermediate scale quantum (NISQ) devices^ 1 and for the quest towards fault-tolerant quantum computation^ 2 , 3 . Rydberg arrays have emerged as a prominent platform ...
Photocatalytic Oxidation in Few‐Layer Tellurene for Loss‐Invariant Integrated Photonic Resonance Trimming
Dun Mao, Yixiu Wang, Hwaseob Lee +9 more·May 5, 2023
Two‐dimensional (2D) materials with unique physicochemical properties promote photocatalytic activities. As the 2D material composites research studies the statistical average of complex catalytic behaviors, an integrated photonic platform allows for...
Direct Collocation for Quantum Optimal Control
A. Trowbridge, Aditya Bhardwaj, Kevin He +2 more·May 5, 2023
We present an adaptation of direct collocation - a trajectory optimization method commonly used in robotics and aerospace applications - to quantum optimal control (QOC); we refer to this method as Pade Integrator COllocation (PICO). This approach su...
A Race-Track Trapped-Ion Quantum Processor
S. Moses, C. Baldwin, M. S. Allman +93 more·May 5, 2023
We describe and benchmark a new quantum charge-coupled device (QCCD) trapped-ion quantum computer based on a linear trap with periodic boundary conditions, which resembles a race track. The new system successfully incorporates several technologies cr...
Resource Management in Quantum Virtual Private Networks
Shahrooz Pouryousef, Nitish K. Panigrahy, Monimoy Deb Purkayastha +4 more·May 5, 2023
In this study, we develop a resource management framework for a quantum virtual private network (qVPN), which involves the sharing of an underlying public quantum network by multiple organizations for quantum entanglement distribution. Our approach i...
Microarchitectures for Heterogeneous Superconducting Quantum Computers
S. Stein, S. Sussman, T. Tomesh +12 more·May 5, 2023
Noisy Intermediate-Scale Quantum Computing (NISQ) has dominated headlines in recent years, with the longer-term vision of Fault-Tolerant Quantum Computation (FTQC) offering significant potential albeit at currently intractable resource costs and quan...
Evidence that PUBO outperforms QUBO when solving continuous optimization problems with the QAOA
Jonas Stein, Farbod Chamanian, Maximilian Zorn +4 more·May 5, 2023
Quantum computing provides powerful algorithmic tools that have been shown to outperform established classical solvers in specific optimization tasks. A core step in solving optimization problems with known quantum algorithms such as the Quantum Appr...
Trainability barriers and opportunities in quantum generative modeling
Manuel S. Rudolph, Sacha Lerch, Supanut Thanasilp +5 more·May 4, 2023
Quantum generative models provide inherently efficient sampling strategies and thus show promise for achieving an advantage using quantum hardware. In this work, we investigate the barriers to the trainability of quantum generative models posed by ba...
Fast, tunable, high fidelity cZ-gates between superconducting qubits with parametric microwave control of ZZ-coupling
X. Jin, K. Cicak, Z. Parrott +6 more·May 4, 2023
Future quantum information processors require tunable coupling architectures that can produce high fidelity logical gates between two or more qubits. Parametric coupling is a powerful technique for generating tunable interactions between many qubits....
Seeking a quantum advantage with trapped-ion quantum simulations of condensed-phase chemical dynamics
Mingyu Kang, Hanggai Nuomin, Sutirtha N Chowdhury +8 more·May 4, 2023
Simulating the quantum dynamics of molecules in the condensed phase represents a longstanding challenge in chemistry. Trapped-ion quantum systems may serve as a platform for the analog-quantum simulation of chemical dynamics that is beyond the reach ...
A Modular Quantum Compilation Framework for Distributed Quantum Computing
Davide Ferrari, S. Carretta, M. Amoretti·May 4, 2023
For most practical applications, quantum algorithms require large resources in terms of qubit number, much larger than those available with current noisy intermediate-scale quantum processors. With the network and communication functionalities provid...
Calibration of syndrome measurements in a single experiment
C. Wimmer, Jochen Szangolies, M. Epping·May 4, 2023
Quantum error correction can reduce the effects of noise in quantum systems, e.g. in metrology or most notably in quantum computing. Typically, this requires making measurements that provide information about the errors that have occurred in the syst...
Mechanically Induced Correlated Errors on Superconducting Qubits with Relaxation Times Exceeding 0.4 Milliseconds
S. Kono, Jiahe Pan, Mahdi Chegnizadeh +4 more·May 4, 2023
Superconducting qubits are one of the most advanced candidates to realize scalable and fault-tolerant quantum computing. Despite recent significant advancements in the qubit lifetimes, the origin of the loss mechanism for state-of-the-art qubits is s...
A Primer on Security of Quantum Computing Hardware
Swaroop Ghosh, S. Upadhyay, Abdullah Ash- Saki·May 4, 2023
Quantum computing (QC) is an emerging paradigm with the potential to transform numerous application domains by addressing classically intractable problems. However, its growing presence in cyberspace has introduced new security and privacy challenges...