Papers

T. Rudolph·Mar 6, 2023

We present photonic quantum computing architectures that can deal with both probabilistic (heralded) generation of single photons and probabilistic gates without making use of coherent switching. The only required dynamical element is the controllabl...

A. Cl'ement, Noé Delorme, S. Perdrix +1 more·Mar 6, 2023

Although quantum circuits have been ubiquitous for decades in quantum computing, the first complete equational theory for quantum circuits has only recently been introduced. Completeness guarantees that any true equation on quantum circuits can be de...

Jiaying Yang, A. Eriksson, M. Aamir +5 more·Mar 6, 2023

A distributed quantum computing system requires a quantum communication channel between spatially separated processing units. In superconducting circuits, such a channel can be realized by using propagating microwave photons to encode and transfer qu...

Milad Nonahal, Chi Li, H. Ren +4 more·Mar 6, 2023

Integrated quantum photonics (IQP) provides a path to practical, scalable quantum computation, communications and information processing. Realization of an IQP platform requires integration of quantum emitters with high quality photonic circuits. How...

Qingfeng Wang, Ze-Pei Cian, Ming Li +2 more·Mar 6, 2023

Despite using a novel model of computation, quantum computers break down programs into elementary gates. Among such gates, entangling gates are the most expensive. In the context of fermionic simulations, we develop a suite of compilation and optimiz...

Casey Duckering·Mar 5, 2023

The field of quantum computing is at an exciting time where we are constructing novel hardware, evaluating algorithms, and finding out what works best. As qubit technology grows and matures, we need to be ready to design and program larger quantum co...

James Mills, D. Sadhukhan, E. Kashefi·Mar 5, 2023

We present a set of methods to generate less complex error channels by quantum circuit parallelisation. The resulting errors are simplified as a consequence of their symmetrisation and randomisation. Initially, the case of a single error channel is a...

Joanna Wi'sniewska, Marek Sawerwain·Mar 5, 2023

The data classification task is broadly utilized in numerous fields of science and it may be realized by different known approaches (e.g. neural networks). However, in this work, quantum computations were harnessed to solve the problem. We take into ...

Yuxiang Peng, Jacob Young, Pengyu Liu +1 more·Mar 5, 2023

Quantum Hamiltonian simulation, which simulates the evolution of quantum systems and probes quantum phenomena, is one of the most promising applications of quantum computing. Recent experimental results suggest that Hamiltonian-oriented analog quantu...

Bruno Avritzer, T. Brun·Mar 4, 2023

Steganography is an alternative to cryptography, where information is protected by secrecy -- being disguised as innocent communication or noise -- rather than being scrambled. In this work we develop schemes for steganographic communication using Fo...

Shane Thompson, G. Siopsis·Mar 4, 2023

It has been demonstrated that the critical point of the phase transition in scalar quantum field theory with a quartic interaction in one space dimension can be approximated via a Gaussian Effective Potential (GEP). We discuss how this critical point...

D. Egger, Chiara Capecci, Bibek Pokharel +4 more·Mar 4, 2023

State-of-the-art noisy digital quantum computers can only execute short-depth quantum circuits. Variational algorithms are a promising route to unlock the potential of noisy quantum computers since the depth of the corresponding circuits can be kept ...

Daniel T. Chang·Mar 4, 2023

As part of the recent research effort on quantum natural language processing (QNLP), variational quantum sentence classifiers (VQSCs) have been implemented and supported in lambeq / DisCoPy, based on the DisCoCat model of sentence meaning. We discuss...

J. Conrad, Jens Eisert, Jean-Pierre Seifert·Mar 4, 2023

We introduce a new class of random Gottesman-Kitaev-Preskill (GKP) codes derived from the cryptanalysis of the so-called NTRU cryptosystem. The derived codes are good in that they exhibit constant rate and average distance scaling Δ∝n with high proba...

Jacob M. Leamer, Alicia B. Magann, Gerard McCaul +1 more·Mar 3, 2023

The spectral gap occupies a role of central importance in many open problems in physics. We present an approach for evaluating the spectral gap of a Hamiltonian from a simple ratio of two expectation values, both of which are evaluated using a quantu...

Wenxi Lai, Yu-Quan Ma, Yi-Wen Wei·Mar 3, 2023

Coherence and scalability are essential properties of quantum systems required in quantum computers. This study presents a high coherent and scalable qubit system with atomtronics in synthetic dimensions. It is atomtronic counterpart of superconducti...

Werner Dobrautz, I. O. Sokolov, Ke Liao +4 more·Mar 3, 2023

Quantum computing is emerging as a new computational paradigm with the potential to transform several research fields, including quantum chemistry. However, current hardware limitations (including limited coherence times, gate infidelities, and limit...

Yangyang Liu, Zhen Chen, Chi-Wang Shu +5 more·Mar 3, 2023

This paper presents a numerical method based on the variational quantum algorithm to solve potential and Stokes flow problems. In this method, the governing equations for potential and Stokes flows can be respectively written in the form of Laplace's...

Ruslan Shaydulin, Marco Pistoia·Mar 3, 2023

One of the central goals of the DARPA Optimization with Noisy Intermediate-Scale Quantum (ONISQ) program is to implement a hybrid quantum/classical optimization algorithm with high $N\cdot p$, where $N$ is the number of qubits and $p$ is the number o...

Sumin Lim, Junjie Liu, A. Ardavan·Mar 3, 2023

The implementation of error correction protocols is a central challenge in the development of practical quantum information technologies. Recently, multi-level quantum resources such as harmonic oscillators and qudits have attracted interest in this ...