Our recently established collaborative research initiative “Machine Learning for Complex Quantum States” (MLCQS) – a consortium spanning nine different institutions across Germany and Switzerland – is...

Measurement-only dynamics: monitored transverse-field Ising model, entanglement phase transition, critical theory & percolation, monitored Kitaev model

Measurement-induced phase transition: entangling vs. disentangling forces, scrambling, critical dynamics, minimal cuts & percolatio, purification transition

Geometry of entanglement: minimal cut, KPZ physics

Random unitary circuits: unitary circuits, thermalization & entanglement dynamics, random circuits, entanglement growth

The year 2024 in computational physics: four selected publications (arXiv:2309.02863, arXiv:2409.13025, arXiv:2408.13687, arXiv:2312.03982)

Error thresholds, optimal decoder, coherent information, stat mech perspective

Stabilizer formalism, quantum error correction (toric code), decoders

Quantum memory: topological order, logical qubits, rotated surface code, quantum error correction, repetition code

Toric code: topological invariants, long-range entanglement, Hamiltonian perspective, quantum phase transitions

Nishimori physics and GHZ state preparation Toric code: 4-qubit joint measurements, loop gas, topology

Computational Quantum Physics / Lecture 04 Weak measurements: imaginary-time evolution, weak parity checks, stability of (GHZ) state preparation, Nishimori physics

Quantum Computational Physics / Lecture 03 Quantum measurements: Born's rule, single-qubit measurements, parity checks (joint measurements), GHZ state preparation

Quantum Computational Physics / Lecture 02 Quantum circuits: qubits, unitary single-qubit gates, two-qubit gates, universal vs. Clifford quantum circuits

Quantum Computational Physics / Lecture 01 Introduction: The dawn of quantum computing (1980-2000), building a quantum computer, overview of qubit platforms and…

Realizing universal fault-tolerant quantum computation is a key goal in quantum information science. By encoding quantum information into logical qubits utilizing quantum error correcting codes, physi...