3.3k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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22 papers · 2 filters
Anomalous discharging of quantum batteries: the ergotropic Mpemba effect
Ivan Medina, Oisín Culhane, Felix C. Binder +2
Anomalous thermal relaxation is ubiquitous in nonequilibrium statistical mechanics. An emblematic example of this is the Mpemba effect, where an initially ``hot'' system cools fast…
GPU-accelerated Effective Hamiltonian Calculator
Abhishek Chakraborty, Taylor L. Patti, Brucek Khailany +2
Effective Hamiltonian calculations for large quantum systems can be both analytically intractable and numerically expensive using standard techniques. In this manuscript, we presen…
Artificially intelligent Maxwell's demon for optimal control of open quantum systems
Paolo Andrea Erdman, Robert Czupryniak, Bibek Bhandari +4
Feedback control of open quantum systems is of fundamental importance for practical applications in various contexts, ranging from quantum computation to quantum error correction a…
Time-resolved Stochastic Dynamics of Quantum Thermal Machines
Abhaya S. Hegde, Patrick P. Potts, Gabriel T. Landi
Steady-state quantum thermal machines are typically characterized by a continuous flow of heat between different reservoirs. However, at the level of discrete stochastic realizatio…
Systematic study of High transmon qudits up to
Z. Wang, R. W. Parker, E. Champion +1
Qudits provide a resource-efficient alternative to qubits for quantum information processing. The multilevel nature of the transmon, with its individually resolvable transition fre…
Role of Quantum Coherence in Kinetic Uncertainty Relations
Kacper Prech, Patrick P. Potts, Gabriel T. Landi
The Kinetic Uncertainty Relation (KUR) bounds the signal-to-noise ratio of stochastic currents in terms of the number of transitions per unit time, known as the dynamical activity.…
Magnetic Field Tolerant Superconducting Spiral Resonators for Circuit QED
M. Medahinne, Y. P. Kandel, S. Thapa Magar +3
We present spiral resonators of thin film niobium (Nb) that exhibit large geometric inductance, high critical magnetic fields and high single photon quality factors. These low loss…
General Framework for Quantifying Dissipation Pathways in Open Quantum Systems. II. Numerical Validation and the Role of Non-Markovianity
Chang Woo Kim, Ignacio Franco
In the previous paper [C. W. Kim and I. Franco, J. Chem. Phys. 160, 214111 (2024)], we developed a theory called MQME-D, which allows us to decompose the overall energy dissipation…
General Framework for Quantifying Dissipation Pathways in Open Quantum Systems. I. Theoretical Formulation
Chang Woo Kim, Ignacio Franco
We present a general and practical theoretical framework to investigate how energy is dissipated in open quantum system dynamics. This is done by quantifying the contributions of i…
Multi-frequency control and measurement of a spin-7/2 system encoded in a transmon qudit
Elizabeth Champion, Zihao Wang, Rayleigh Parker +1
Qudits hold great promise for efficient quantum computation and the simulation of high-dimensional quantum systems. Utilizing a local Hilbert space of dimension d > 2 is known to s…
High-Coherence Kerr-cat qubit in 2D architecture
Ahmed Hajr, Bingcheng Qing, Ke Wang +15
The Kerr-cat qubit is a bosonic qubit in which multi-photon Schrodinger cat states are stabilized by applying a two-photon drive to an oscillator with a Kerr nonlinearity. The supp…
Dynamically corrected gates in silicon singlet-triplet spin qubits
Habitamu Y. Walelign, Xinxin Cai, Bikun Li +2
Fault-tolerant quantum computation requires low physical-qubit gate errors. Many approaches exist to reduce gate errors, including both hardware- and control-optimization strategie…
Symmetrically Threaded Superconducting Quantum Interference Devices As Next Generation Kerr-cat Qubits
Bibek Bhandari, Irwin Huang, Ahmed Hajr +7
We theoretically explore an alternative circuit for Kerr-cat qubits based on symmetrically threaded Superconducting Quantum Interference Devices (SQUID). The Symmetrically Threaded…
Waiting time statistics for a double quantum dot coupled with an optical cavity
Luis F. Santos, Gabriel T. Landi
A double quantum dot coupled to an optical cavity is a prototypical example of a non-trivial open quantum system. Recent experimental and theoretical studies show that this system…
Exploring the Accuracy of Interferometric Quantum Measurements under Conservation Laws
Nicolò Piccione, Maria Maffei, Andrew N. Jordan +2
A (target) quantum system is often measured through observations performed on a second (meter) system to which the target is coupled. In the presence of global conservation laws ho…
Quantum stochastic thermodynamics in the mesoscopic-leads formulation
Laetitia P. Bettmann, Michael J. Kewming, Gabriel T. Landi +2
We introduce a numerical method to sample the distributions of charge, heat, and entropy production in open quantum systems coupled strongly to macroscopic reservoirs, with both te…
Universal energy fluctuations in inelastic scattering processes
Samuel L. Jacob, John Goold, Gabriel T. Landi +1
Quantum scattering is used ubiquitously in both experimental and theoretical physics across a wide range of disciplines, from high-energy physics to mesoscopic physics. In this wor…
Queued quantum collision models
Guilherme Fiusa, Gabriel T. Landi
Collision models describe the sequential interactions of a system with independent ancillas. Motivated by recent advances in neutral atom arrays, in this Letter we investigate a mo…
Properties and Applications of the Kirkwood-Dirac Distribution
David R. M. Arvidsson-Shukur, William F. Braasch, Stephan De Bievre +6
Recent years have seen the Kirkwood-Dirac (KD) distribution come to the forefront as a powerful quasi-probability distribution for analysing quantum mechanics. The KD distribution…
Parameter estimation for quantum jump unraveling
Marco Radaelli, Joseph A. Smiga, Gabriel T. Landi +1
We consider the estimation of parameters encoded in the measurement record of a continuously monitored quantum system in the jump unraveling, corresponding to a single-shot scenari…
Bexcitonics: Quasi-particle approach to open quantum dynamics
Xinxian Chen, Ignacio Franco
We develop a quasiparticle approach to capture the dynamics of open quantum systems coupled to bosonic thermal baths of arbitrary complexity based on the Hierarchical Equations of…
Fisher information rates in sequentially measured quantum systems
Eoin O'Connor, Steve Campbell, Gabriel T. Landi
We consider the impact that temporal correlations in the measurement statistics can have on the achievable precision in a sequential metrological protocol. In this setting, and for…