Characterising the Hierarchy of Multi-time Quantum Processes with Classical Memory

Autor: Philip Taranto, Marco Túlio Quintino, Mio Murao, Simon Milz

Publikováno v: Quantum, Vol 8, p 1328 (2024)

Memory is the fundamental form of temporal complexity: when present but uncontrollable, it manifests as non-Markovian noise; conversely, if controllable, memory can be a powerful resource for information processing. Memory effects arise from/are tran

Externí odkaz: https://doaj.org/article/b50409a3cce04aceb0ad68d0c7eab184

Hidden Quantum Memory: Is Memory There When Somebody Looks?

Autor: Philip Taranto, Thomas J. Elliott, Simon Milz

Publikováno v: Quantum, Vol 7, p 991 (2023)

In classical physics, memoryless dynamics and Markovian statistics are one and the same. This is not true for quantum dynamics, first and foremost because quantum measurements are invasive. Going beyond measurement invasiveness, here we derive a nove

Externí odkaz: https://doaj.org/article/0211ffa867224a9dad26449dfeb4afb7

When Is a Non-Markovian Quantum Process Classical?

Autor: Simon Milz, Dario Egloff, Philip Taranto, Thomas Theurer, Martin B. Plenio, Andrea Smirne, Susana F. Huelga

Publikováno v: Physical Review X, Vol 10, Iss 4, p 041049 (2020)

More than a century after the inception of quantum theory, the question of which traits and phenomena are fundamentally quantum remains under debate. Here, we give an answer to this question for temporal processes that are probed sequentially by mean

Externí odkaz: https://doaj.org/article/536eb4cb8a834ab4be83a22408847038

Landauer vs. Nernst: What is the True Cost of Cooling a Quantum System?

Autor: Philip Taranto, Faraj Bakhshinezhad, Andreas Bluhm, Ralph Silva, Nicolai Friis, Maximilian P.E. Lock, Giuseppe Vitagliano, Felix C. Binder, Tiago Debarba, Emanuel Schwarzhans, Fabien Clivaz, Marcus Huber

Publikováno v: Taranto, P, Bakhshinezhad, F, Bluhm, A, Silva, R, Friis, N, Lock, M P E, Vitagliano, G, Binder, F C, Debarba, T, Schwarzhans, E, Clivaz, F & Huber, M 2023, ' Landauer Versus Nernst : What is the True Cost of Cooling a Quantum System ', PRX Quantum, vol. 4, no. 1, 010332 . https://doi.org/10.1103/PRXQuantum.4.010332
PRX Quantum, 4 (1)

Thermodynamics connects our knowledge of the world to our capability to manipulate and thus to control it. This crucial role of control is exemplified by the third law of thermodynamics, Nernst's unattainability principle, which states that infinite

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5ba1070673e213fa22f2d2f6b7a6d470

Experimental Demonstration of Instrument-specific Quantum Memory Effects and Non-Markovian Process Recovery for Common-Cause Processes

Autor: Yun-Feng Huang, Xiao-Min Hu, Chuan-Feng Li, Philip Taranto, Bi-Heng Liu, Yu Guo, Guang-Can Guo

The duration, strength and structure of memory effects are crucial properties of physical evolution. Due to the invasive nature of quantum measurement, such properties must be defined with respect to the probing instruments employed. Here, using a ph

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::816c6d801f343e0d6e0384c82518bc28