#OpenQuantumSystems
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Novel deterministic algorithm reduces computational cost by ~100x compared to trajectory ensembles while eliminating sampling error. Enables accurate, efficient simulation of non-Markovian open quantum systems with standard numerical solvers.

#QuantumSimulation #OpenQuantumSystems #Research
Deterministic Polynomial Chaos Galerkin Method for Non-Markovian Quantum State Diffusion
arxiv.org
November 3, 2026 at 6:09 PM
informaq.bsky.social
Researchers derived a generalized Lindblad master equation retaining counter-rotating terms, showing these neglected terms produce significant qualitative changes in open quantum system dynamics beyond conventional approximations.

#QuantumDynamics #OpenQuantumSystems #Research
Generalized Lindblad Master Equation Beyond the Rotating Wave Approximation
iq.fp2.dev
November 5, 2026 at 8:58 AM
informaq.bsky.social
Independently controlled coherent and dissipative operations achieve accelerated steady-state preparation through optimized paths, with transferred protocols reaching matched accuracy using 1.6-2.6× fewer generator blocks than Trotter formulas.

#QuantumAlgorithms #OpenQuantumSystems #Research
Lindblad Variational Ansatz for Fast Open Quantum System Preparation
arxiv.org
November 4, 2026 at 7:02 AM
informaq.bsky.social
Derives fundamental bounds connecting quantum fluctuation growth to Fisher information and quantum channel operations, providing a unified framework for understanding how environmental processes affect observable statistics.

#QuantumInformation #OpenQuantumSystems #Research
Information-Geometric Bounds on Observable Fluctuation Growth in Open Quantum Systems
iq.fp2.dev
November 4, 2026 at 2:54 AM
informaq.bsky.social
We formulate non-invertible symmetries in Liouville space, revealing how Kramers-Wannier defects constrain exceptional degeneracies and Jordan structures in dissipative quantum dynamics while enabling perturbation-selective sensing.

#QuantumInformation #OpenQuantumSystems #NonInvertibleSymmetry
Liouvillian Non-Invertible Symmetry in Open Quantum Systems
iq.fp2.dev
November 1, 2026 at 9:15 AM
informaq.bsky.social
Derived a multi-current kinetic uncertainty relation (MKUR) establishing joint precision limits for correlated currents in quantum systems, demonstrating quantum coherence suppresses fluctuations beyond classical limits.

#QuantumPrecision #OpenQuantumSystems #Research
Multi-Current Kinetic Uncertainty Relation for Quantum Precision Enhancement
arxiv.org
September 30, 2026 at 2:46 PM
informaq.bsky.social
Reveals rapid mixing in open quantum systems is fragile under local perturbations but identifies rigorous conditions ensuring stability, advancing understanding of robust dissipative state preparation and quantum system engineering.

#QuantumDissipation #OpenQuantumSystems #Research
Stability of Rapid Mixing in Quantum Dissipative Systems Under Perturbations
arxiv.org
September 30, 2026 at 2:14 PM
informaq.bsky.social
Local dissipation fundamentally alters quantum chaos signatures. Despite identical spectral statistics, local Lindbladians exhibit log-normal eigenoperator-entanglement distributions, revealing hidden structure beyond standard random-matrix diagnostics.

#QuantumChaos #OpenQuantumSystems #Research
Universal Eigenoperator Entanglement in Local Lindbladians
arxiv.org
September 25, 2026 at 6:35 AM
informaq.bsky.social
Comprehensive review of four MPS-based algorithms for simulating open quantum systems via Lindblad equation integration. Compares vectorized and stochastic approaches, benchmarked against exact free-fermion models.

#QuantumSimulation #MatrixProductStates #OpenQuantumSystems
Introduction to Matrix Product State Algorithms for Lindblad Equation Integration
iq.fp2.dev
September 17, 2026 at 9:50 AM
informaq.bsky.social
Quantum coherence accelerates classical randomization in permutation walks without sacrificing information at the density matrix level. Coherent and dissipative dynamics cooperate to achieve faster measurement-basis mixing via Lindblad evolution.

#QuantumWalks #OpenQuantumSystems #Research
Quantum-Enhanced Mixing on Permutation Groups
iq.fp2.dev
September 17, 2026 at 2:17 PM
informaq.bsky.social
Demonstrates how irreversible statistical mechanics and thermodynamic behavior emerge from reversible quantum dynamics using exact open system theory, resolving century-old paradoxes about the origin of probability in quantum systems.

#QuantumThermodynamics #OpenQuantumSystems #Research
How Statistical Probability Emerges from Reversible Quantum Dynamics: A Dynamical Solution to Hilbert's Sixth Problem
arxiv.org
September 17, 2026 at 3:50 AM
informaq.bsky.social
Transient system-bath correlations trigger anomalous relaxation: hotter quantum systems can thermalize faster than colder ones when initial-slip dynamics dominate, persisting beyond Markovian approximations.

#QuantumThermodynamics #OpenQuantumSystems #Research
Initial-Slip Dynamics Enable Quantum Mpemba Effect in Dissipative Systems
iq.fp2.dev
September 16, 2026 at 4:30 AM
informaq.bsky.social
Coherent boundary conditions can tune dissipative relaxation rates in nonreciprocal open quantum systems through damped coherences, enabling spectral gap control without direct dissipator modification.

#OpenQuantumSystems #LiouvillianDynamics #Research
Boundary Control of Liouvillian Gaps via Coherence-Mediated Feedback in Open Quantum Systems
arxiv.org
September 9, 2026 at 3:03 PM
informaq.bsky.social
Researchers developed an algorithm using frozen Gaussian approximation to reduce computational complexity of environmental effects on quantum systems, enabling deterministic 2D Caldeira-Leggett model simulations previously thought infeasible.

#QuantumSimulation #OpenQuantumSystems #News
Algorithm Halves Spatial Dimensionality in Open Quantum System Simulations
iq.fp2.dev
September 2, 2026 at 8:12 PM
informaq.bsky.social
New algorithm cuts computational cost for open quantum system simulations by half through low-rank bath correlation approximation and frozen Gaussian dynamics, achieving first deterministic 2D Caldeira-Leggett model simulations.

#QuantumSimulation #OpenQuantumSystems #News
Efficient Simulation of Multidimensional Open Quantum Systems Using Reduced Dimensionality Methods
quantum-journal.org
September 2, 2026 at 11:03 AM
informaq.bsky.social
Developed quantum circuit framework with auxiliary pseudomodes to simulate both Markovian and non-Markovian open quantum dynamics, validated against classical solvers for modeling hard probes in relativistic heavy-ion collisions.

#QuantumSimulation #OpenQuantumSystems #Research
Quantum Circuit Methods for Simulating Open Quantum Dynamics in Heavy-Ion Collisions
arxiv.org
September 1, 2026 at 5:16 AM
informaq.bsky.social
Novel well-conditioned iterative methods for Lindblad master equations enable efficient computation of steady states and low-lying spectra in large quantum systems, achieving O(n³) complexity with significant GPU speedups over existing solvers.

#QuantumControl #OpenQuantumSystems #Research
Efficient Iterative Solvers for Large Open Quantum Systems via Lyapunov Preconditioners
arxiv.org
September 1, 2026 at 6:37 AM
informaq.bsky.social
Identifies a fundamental threshold in Liouvillian spectra: recovering dephasing rates requires at least D=2^n modes. Critical insight for characterizing dissipation in quantum devices through spectral analysis.

#QuantumControl #OpenQuantumSystems #Research
Spectral Identifiability Thresholds for Dissipative Rate Recovery in Open Quantum Systems
iq.fp2.dev
September 1, 2026 at 2:51 AM
informaq.bsky.social
Novel Levi-type decomposition theorem extends classical Lie algebra structure theory to open quantum systems, revealing how dissipation encodes geometrically in dynamical Lie wedges. Bridges Lie semigroup theory with quantum control theory.

#QuantumControl #OpenQuantumSystems #Research
Geometry of Dissipative Complexity in Markovian Quantum Dynamics
arxiv.org
August 28, 2026 at 6:39 AM
informaq.bsky.social
Developed efficient polynomial-time algorithm to reconstruct time-local Liouvillians for quantum subsystems embedded in many-body chains. Analysis reveals ballistic spreading of dissipation and conditions favoring Markovian vs non-Markovian dynamics.

#QuantumControl #OpenQuantumSystems #Research
Lindbladian Framework for Subsystem Dynamics in Noninteracting Quantum Chains
arxiv.org
August 24, 2026 at 2:43 AM
informaq.bsky.social
Proves that non-factorisable quantum system-environment interactions always produce non-linear reduced dynamics, generalizing fundamental results about completely positive maps in open quantum systems.

#QuantumInformation #OpenQuantumSystems #Research
Deviation from Linear Reduced Dynamics in Non-Factorisable System-Environment Evolutions
iq.fp2.dev
August 20, 2026 at 3:49 AM
alanmaioli.bsky.social
🧪⚛️[3/3] A huge thank you to the Theoretical Physics Coordination at CBPF for the kind invitation and for hosting me. The questions and subsequent discussion were a true highlight and have given me so much to think about.

#Physics #Quantum #QuantumComputing #Complexity #OpenQuantumSystems
September 16, 2025 at 12:47 PM
ifisc.uib-csic.es
🧠✨ Can a quantum system learn better just by tweaking its boundaries?

New IFISC study in Optica Quantum shows how the Liouvillian skin effect shapes learning in quantum neural networks through dissipation.

🔗 ifisc.uib-csic.es/en/news/ifis...

#QuantumComputing #MachineLearning #OpenQuantumSystems
June 10, 2025 at 8:12 AM
gianlucabertaina.bsky.social
Here is the preprint:
arxiv.org/abs/2506.23928

#OpenQuantumSystems #ComputationalPhysics #ManyBodyPhysics #QuantumMonteCarlo #QuantumMetrology #Quantum 🧪
Unraveling Open Quantum Dynamics with Time-Dependent Variational Monte Carlo
We introduce a method to simulate open quantum many-body dynamics by combining time-dependent variational Monte Carlo (tVMC) with quantum trajectory techniques. Our approach unravels the Lindblad mast...
arxiv.org
July 22, 2025 at 10:29 AM
nithecs.bsky.social
Attend the NITheCS & QSUN Seminar: ‘High-temperature limit penalising high-frequency quantum fluctuations’ by Dr Graeme Pleasance (SU)
📅 Fri, 7 Aug
🕑 14h00-15h00 SAST
📍 Attend in person or online
🔗 buff.ly/Xgpqvjb
#QuantumBrownianMotion #OpenQuantumSystems #QuantumDecoherence #QuantumFluctuations
August 4, 2026 at 7:09 AM