142 citations · 959 across the 19 of their papers we have counts for
19 papers
Simulating 2D lattice gauge theories on a qudit quantum computer
Michael Meth, Jan F. Haase, Jinglei Zhang +11
Particle physics underpins our understanding of the world at a fundamental level by describing the interplay of matter and forces through gauge theories. Yet, despite their unmatch…
Simulating one-dimensional quantum chromodynamics on a quantum computer: Real-time evolutions of tetra- and pentaquarks
Yasar Y. Atas, Jan F. Haase, Jinglei Zhang +4
Quantum chromodynamics - the theory of quarks and gluons - has been known for decades, but it is yet to be fully understood. A recent example is the prediction and experimental dis…
3+1D -Term on the Lattice from the Hamiltonian Perspective
Angus Kan, Lena Funcke, Stefan Kühn +5
Quantum and tensor network simulations have emerged as prominent sign-problem free approaches to lattice gauge theories. Unlike conventional Markov chain Monte Carlo methods, they…
Adaptive estimation of quantum observables
Ariel Shlosberg, Andrew J. Jena, Priyanka Mukhopadhyay +3
The accurate estimation of quantum observables is a critical task in science. With progress on the hardware, measuring a quantum system will become increasingly demanding, particul…
Simulating gauge theories with variational quantum eigensolvers in superconducting microwave cavities
Jinglei Zhang, Ryan Ferguson, Stefan Kühn +4
Quantum-enhanced computing methods are promising candidates to solve currently intractable problems. We consider here a variational quantum eigensolver (VQE), that delegates costly…
Investigating a (3+1)D Topological -Term in the Hamiltonian Formulation of Lattice Gauge Theories for Quantum and Classical Simulations
Angus Kan, Lena Funcke, Stefan Kühn +5
Quantum technologies offer the prospect to efficiently simulate sign-problem afflicted regimes in lattice field theory, such as the presence of topological terms, chemical potentia…
SU(2) hadrons on a quantum computer
Yasar Atas, Jinglei Zhang, Randy Lewis +3
We realize, for the first time, a non-Abelian gauge theory with both gauge and matter fields on a quantum computer. This enables the observation of hadrons and the calculation of t…
Parallel selective nuclear spin addressing for fast high-fidelity quantum gates
Benedikt Tratzmiller, Jan F. Haase, Zhenyu Wang +1
Due to their long coherence times, nuclear spins have gained considerable attention as physical qubits. Two-qubit gates between nuclear spins of distinct resonance frequencies can…
Towards simulating 2D effects in lattice gauge theories on a quantum computer
Danny Paulson, Luca Dellantonio, Jan F. Haase +8
Gauge theories are the most successful theories for describing nature at its fundamental level, but obtaining analytical or numerical solutions often remains a challenge. We propos…
A resource efficient approach for quantum and classical simulations of gauge theories in particle physics
Jan F. Haase, Luca Dellantonio, Alessio Celi +4
Gauge theories establish the standard model of particle physics, and lattice gauge theory (LGT) calculations employing Markov Chain Monte Carlo (MCMC) methods have been pivotal in…
Versatile Atomic Magnetometry Assisted by Bayesian Inference
R. Puebla, Y. Ban, J. F. Haase +3
Quantum sensors typically translate external fields into a periodic response whose frequency is then determined by analyses performed in Fourier space. This allows for a linear inf…
Non-monotonic population and coherence evolution in Markovian open-system dynamics
Jan F. Haase, Andrea Smirne, Susana F. Huelga
We consider a simple microscopic model where the open-system dynamics of a qubit, despite being Markovian, shows features which are typically associated to the presence of memory e…
Precision Limits in Quantum Metrology with Open Quantum Systems
Jan F. Haase, Andrea Smirne, Jan Kołodyński +2
The laws of quantum mechanics allow to perform measurements whose precision supersedes results predicted by classical parameter estimation theory. That is, the precision bound impo…
Controllable Non-Markovianity for a Spin Qubit in Diamond
Jan F. Haase, Philipp J. Vetter, Thomas Unden +7
We present a flexible scheme to realize non-artificial non-Markovian dynamics of an electronic spin qubit, using a nitrogen-vacancy center in diamond where the inherent nitrogen sp…
Fundamental limits to frequency estimation: A comprehensive microscopic perspective
Jan F. Haase, Andrea Smirne, Jan Kołodyński +2
We consider a scenario in which qubit-like probes are used to sense an external field that linearly affects their energy splitting. Following the frequency estimation approach in w…
Soft Quantum Control for Highly Selective Interactions among Joint Quantum Systems
J. F. Haase, Z. -Y. Wang, J. Casanova +1
We propose a quantum control scheme aimed at interacting systems that gives rise to highly selective coupling among their near-to-resonance constituents. Our protocol implements te…
Pulse-phase control for spectral disambiguation in quantum sensing protocols
J. F. Haase, Z. -Y. Wang, J. Casanova +1
We present a method to identify spurious signals generated by finite-width pulses in quantum sensing experiments and apply it to recently proposed dynamical decoupling sequences fo…
Positioning Nuclear Spins in Interacting Clusters for Quantum Technologies and Bio-imaging
Zhen-Yu Wang, Jan F. Haase, Jorge Casanova +1
We propose a method to measure the hyperfine vectors between a nitrogen-vacancy (NV) center and an environment of interacting nuclear spins. Our protocol enables the generation of…
Robust Dynamical Decoupling Sequences for Individual Nuclear Spin Addressing
J. Casanova, Z. -Y. Wang, J. F. Haase +1
We propose the use of non-equally spaced decoupling pulses for high-resolution selective addressing of nuclear spins by a quantum sensor. The analytical model of the basic operatin…