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20142026
most citedMatrix Product States and Projected Entangled Pair States: Concepts, Symmetries, and Theorems

831 citations

Showing 2021 · quant-phShow all

57 papers · 2 filters

quant-ph2021★ 6 cited

Supersymmetric Free Fermions and Bosons: Locality, Symmetry and Topology

Zongping Gong, Robert H. Jonsson, Daniel Malz

Supersymmetry, originally proposed in particle physics, refers to a dual relation that connects fermionic and bosonic degrees of freedom in a system. Recently, there has been consi…

quant-ph2021★ 28 cited

Optimal Thresholds for Fracton Codes and Random Spin Models with Subsystem Symmetry

Hao Song, Janik Schönmeier-Kromer, Ke Liu +3

Fracton models provide examples of novel gapped quantum phases of matter that host intrinsically immobile excitations and therefore lie beyond the conventional notion of topologica…

quant-ph2021★ 106 cited

Symmetry Protected Topological Order in Open Quantum Systems

Caroline de Groot, Alex Turzillo, Norbert Schuch

We systematically investigate the robustness of symmetry protected topological (SPT) order in open quantum systems by studying the evolution of string order parameters and other pr…

quant-ph2021★ 25 cited

Entropy decay for Davies semigroups of a one dimensional quantum lattice

Ivan Bardet, Ángela Capel, Li Gao +3

Given a finite-range, translation-invariant commuting system Hamiltonians on a spin chain, we show that the Davies semigroup describing the reduced dynamics resulting from the join…

quant-ph2021★ 234 cited

Entangling single atoms over 33 km telecom fibre

Tim van Leent, Matthias Bock, Florian Fertig +10

Heralded entanglement between distant quantum memories is the key resource for quantum networks. Based on quantum repeater protocols, these networks will facilitate efficient large…

quant-ph2021★ 1 cited

Optomechanics for quantum technologies

Shabir Barzanjeh, André Xuereb, Simon Gröblacher +3

The ability to control the motion of mechanical systems through its interaction with light has opened the door to a plethora of applications in fundamental and applied physics. Wit…

quant-ph2021★ 11 cited

Direct implementation of a perceptron in superconducting circuit quantum hardware

Marek Pechal, Federico Roy, Samuel A. Wilkinson +4

The utility of classical neural networks as universal approximators suggests that their quantum analogues could play an important role in quantum generalizations of machine-learnin…

quant-ph2021★ 26 cited

Single Shot i-Toffoli Gate in Dispersively Coupled Superconducting Qubits

Aneirin J. Baker, Gerhard B. P. Huber, Niklas J. Glaser +4

Quantum algorithms often benefit from the ability to execute multi-qubit (>2) gates. To date such multi-qubit gates are typically decomposed into single- and two-qubit gates, parti…

quant-ph2021★ 4 cited

Dynamics of atoms within atoms

S. Tiwari, F. Engel, M. Wagner +3

Recent experiments with Bose-Einstein condensates have entered a regime in which thousands of ground-state condensate atoms fill the Rydberg-electron orbit. After the excitation of…

quant-ph2021★ 8 cited

Optimal convergence rate in the quantum Zeno effect for open quantum systems in infinite dimensions

Tim Möbus, Cambyse Rouzé

In open quantum systems, the quantum Zeno effect consists in frequent applications of a given quantum operation, e.g.~a measurement, used to restrict the time evolution (due e.g.~t…

quant-ph2021★ 485 cited

Generalization in quantum machine learning from few training data

Matthias C. Caro, Hsin-Yuan Huang, M. Cerezo +4

Modern quantum machine learning (QML) methods involve variationally optimizing a parameterized quantum circuit on a training data set, and subsequently making predictions on a test…

quant-ph2021★ 15 cited

Integrating Quantum Simulation for Quantum-Enhanced Classical Network Emulation

Stephen DiAdamo, Janis Nötzel, Simon Sekavčnik +5

We describe a method of investigating the near-term potential of quantum communication technology for communication networks from the perspective of current networks. For this, we…

quant-ph2021★ 47 cited

Spectral multiplexing of telecom emitters with stable transition frequency

Alexander Ulanowski, Benjamin Merkel, Andreas Reiserer

In a quantum network, coherent emitters can be entangled over large distances using photonic channels. In solid-state devices, the required efficient light-emitter interface can be…

quant-ph2021

Geometric and holonomic quantum computation

Jiang Zhang, Thi Ha Kyaw, Stefan Filipp +3

Geometric and holonomic quantum computation utilizes intrinsic geometric properties of quantum-mechanical state spaces to realize quantum logic gates. Since both geometric phases a…

quant-ph2021★ 62 cited

Methods for simulating string-net states and anyons on a digital quantum computer

Yu-Jie Liu, Kirill Shtengel, Adam Smith +1

Finding physical realizations of topologically ordered states in experimental settings, from condensed matter to artificial quantum systems, has been the main challenge en route to…

quant-ph2021★ 309 cited

Experimental device-independent quantum key distribution between distant users

Wei Zhang, Tim van Leent, Kai Redeker +7

Device-independent quantum key distribution (DIQKD) is the art of using untrusted devices to establish secret keys over an untrusted channel. So far, the real-world implementation…

quant-ph2021★ 45 cited

Classical approaches to prethermal discrete time crystals in one, two, and three dimensions

Andrea Pizzi, Andreas Nunnenkamp, Johannes Knolle

We provide a comprehensive account of prethermal discrete time crystals within classical Hamiltonian dynamics, complementing and extending our recent work [Phys. Rev. Lett. 127, 14…

quant-ph2021★ 8 cited

Deviation bounds and concentration inequalities for quantum noises

Tristan Benoist, Lisa Hänggli, Cambyse Rouzé

We provide a stochastic interpretation of non-commutative Dirichlet forms in the context of quantum filtering. For stochastic processes motivated by quantum optics experiments, we…

quant-ph2021

Classical State Masking over a Quantum Channel

Uzi Pereg, Christian Deppe, Holger Boche

Transmission of classical information over a quantum state-dependent channel is considered, when the encoder can measure channel side information (CSI) and is required to mask info…

quant-ph2021★ 9 cited

The scattering coefficients of superconducting microwave resonators: II. System-bath approach

Qi-Ming Chen, Matti Partanen, Florian Fesquet +8

We describe a unified quantum approach for analyzing the scattering coefficients of superconducting microwave resonators with a variety of geometries. We also generalize the method…

quant-ph2021★ 21 cited

The scattering coefficients of superconducting microwave resonators: I. Transfer-matrix approach

Qi-Ming Chen, Meike Pfeiffer, Matti Partanen +9

We describe a unified classical approach for analyzing the scattering coefficients of superconducting microwave resonators with a variety of geometries. To fill the gap between exp…

quant-ph2021★ 5 cited

Generation of photonic tensor network states with Circuit QED

Zhi-Yuan Wei, J. Ignacio Cirac, Daniel Malz

We propose a circuit QED platform and protocol to generate microwave photonic tensor network states deterministically. We first show that using a microwave cavity as ancilla and a…

quant-ph2021★ 6 cited

Quantum and classical dynamical semigroups of superchannels and semicausal channels

Markus Hasenöhrl, Matthias C. Caro

Quantum devices are subject to natural decay. We propose to study these decay processes as the Markovian evolution of quantum channels, which leads us to dynamical semigroups of su…

quant-ph2021

Application of the Small Tip-Angle approximation in the Toggling Frame for the design of analytic robust pulses in Quantum Control

L. Van Damme, D. Sugny, S. J. Glaser

We apply the Small Tip-Angle Approximation in the Toggling Frame in order to analytically design robust pulses against resonance offsets for state to state transfer in two-level qu…