315 citations · 1.6k across the 49 of their papers we have counts for
49 papers
Non-Abelian String-Breaking Dynamics on a Qudit Quantum Computer
Manuel John, Keshav Pareek, Peter Tirler +7
Gauge theories form the foundation of the Standard Model of particle physics. These theories can exhibit confinement, where charged particles only occur in bound states, connected…
Programmable Fermionic Quantum Processors with Globally Controlled Lattices
Gabriele Calliari, Charles Fromonteil, Francesco Cesa +4
We introduce a framework for realizing universal fermionic quantum processing with globally controlled itinerant fermionic particles. Our approach is tailored to the example of neu…
Imaginary time evolution and ground state preparation using unitary multi-copy protocols
Tal Schwartzman, Torsten V. Zache, Hannes Pichler +1
Efficient low-energy state preparation is a key objective in quantum computation and quantum simulation. Quantum imaginary-time evolution replaces real-time dynamics with imaginary…
U(1) lattice gauge theory and string roughening on a triangular Rydberg array
Lisa Bombieri, Torsten V. Zache, Hannes Pichler +1
Lattice gauge theories (LGTs) describe fundamental interactions in particle physics. A central phenomenon in these theories is confinement, which binds quarks and antiquarks into h…
Rare-Event Quantum Sensing using Logical Qubits
Robert Ott, Torsten V. Zache, Soonwon Choi +2
We present a novel protocol to detect rare signals in a noisy environment using quantum error correction (QEC). The key feature of our protocol is the discrimination between signal…
Real-time collisions of fractional charges in a trapped-ion Jackiw-Rebbi field theory
Alan Kahan, Pablo Viñas, Torsten V. Zache +1
We propose and analyze a trapped-ion quantum simulator of the Jackiw-Rebbi model, a paradigmatic quantum field theory in (1+1) dimensions where solitonic excitations of a scalar fi…
Algorithmic Quantum Simulations of Quantum Thermodynamics
Yangsen Ye, Jue Nan, Dong Chen +27
Characterizing quantum phases-of-matter at finite-temperature is essential for understanding complex materials and large-scale thermodynamic phenomena. Here, we develop algorithmic…
Non-local mass superpositions and optical clock interferometry in atomic ensemble quantum networks
Charles Fromonteil, Denis V. Vasilyev, Torsten V. Zache +5
Quantum networks are emerging as powerful platforms for sensing, communication, and fundamental tests of physics. We propose a programmable quantum sensing network based on entangl…
Few is different: deciphering many-body dynamics in mesoscopic quantum gases
Juergen Berges, Sandra Brandstetter, Jasmine Brewer +27
Emergent macroscopic descriptions of matter, such as hydrodynamics, are central to our description of complex physical systems across a wide spectrum of energy scales. The conventi…
Deconfined quantum criticality on a triangular Rydberg array
Lisa Bombieri, Torsten V. Zache, Gabriele Calliari +3
Fluctuations can drive continuous phase transitions between two distinct ordered phases -- so-called deconfined quantum critical points (DQCPs) -- which lie beyond the Landau-Ginzb…
Field digitization scaling in a symmetric model
Gabriele Calliari, Robert Ott, Hannes Pichler +1
The simulation of quantum field theories, both classical and quantum, requires regularization of infinitely many degrees of freedom. However, in the context of field digitization (…
Error-corrected fermionic quantum processors with neutral atoms
Robert Ott, Daniel González-Cuadra, Torsten V. Zache +3
Many-body fermionic systems can be simulated in a hardware-efficient manner using a fermionic quantum processor. Neutral atoms trapped in optical potentials can realize such proces…
Quantum simulating continuum field theories with large-spin lattice models
Gabriele Calliari, Marco Di Liberto, Hannes Pichler +1
Simulating the real-time dynamics of quantum field theories (QFTs) is one of the most promising applications of quantum simulators. Regularizing a bosonic QFT for quantum simulatio…
Observation of string breaking on a (2 + 1)D Rydberg quantum simulator
Daniel Gonzalez-Cuadra, Majd Hamdan, Torsten V. Zache +10
Lattice gauge theories (LGTs) describe a broad range of phenomena in condensed matter and particle physics. A prominent example is confinement, responsible for bounding quarks insi…
Probing topological entanglement on large scales
Robert Ott, Torsten V. Zache, Nishad Maskara +3
Topologically ordered quantum matter exhibits intriguing long-range patterns of entanglement, which reveal themselves in subsystem entropies. However, measuring such entropies, whi…
Dark spin-cats as biased qubits
Andreas Kruckenhauser, Ming Yuan, Han Zheng +8
We present a biased atomic qubit, universally implementable across all atomic platforms, encoded as a `spin-cat' within ground state Zeeman levels. The key characteristic of our co…
Entanglement Structure of Non-Gaussian States and How to Measure It
Henry Froland, Torsten V. Zache, Robert Ott +1
Rapidly growing capabilities of quantum simulators to probe quantum many-body phenomena require new methods to characterize increasingly complex states. We present a protocol that…
Hamiltonian Learning in Quantum Field Theories
Robert Ott, Torsten V. Zache, Maximilian Prüfer +5
We discuss Hamiltonian learning in quantum field theories as a protocol for systematically extracting the operator content and coupling constants of effective field theory Hamilton…
Exploring Large-Scale Entanglement in Quantum Simulation
Manoj K. Joshi, Christian Kokail, Rick van Bijnen +5
Entanglement is a distinguishing feature of quantum many-body systems, and uncovering the entanglement structure for large particle numbers in quantum simulation experiments is a f…
Quantum and classical spin network algorithms for -deformed Kogut-Susskind gauge theories
Torsten V. Zache, Daniel González-Cuadra, Peter Zoller
Treating the infinite-dimensional Hilbert space of non-abelian gauge theories is an outstanding challenge for classical and quantum simulations. Here, we introduce -deformed Kog…
Fermionic quantum processing with programmable neutral atom arrays
Daniel González-Cuadra, Dolev Bluvstein, Marcin Kalinowski +10
Simulating the properties of many-body fermionic systems is an outstanding computational challenge relevant to material science, quantum chemistry, and particle physics. Although q…
Fermion-qudit quantum processors for simulating lattice gauge theories with matter
Torsten V. Zache, Daniel González-Cuadra, Peter Zoller
Simulating the real-time dynamics of lattice gauge theories, underlying the Standard Model of particle physics, is a notoriously difficult problem where quantum simulators can prov…
High-dimensional SO(4)-symmetric Rydberg manifolds for quantum simulation
Andreas Kruckenhauser, Rick van Bijnen, Torsten V. Zache +2
We develop a toolbox for manipulating arrays of Rydberg atoms prepared in high-dimensional hydrogen-like manifolds in the regime of linear Stark and Zeeman effect. We exploit the S…
Equal-time approach to real-time dynamics of quantum fields
Robert Ott, Torsten V. Zache, Jürgen Berges
We employ the equal-time formulation of quantum field theory to derive effective kinetic theories, first for a weakly coupled non-relativistic Bose gas, and then for a strongly cor…