`2022-10-19 13:30:00``2022-10-19 14:30:00``Colloquium - Davide Girolami (Politecnico di Torino) - From new quantum laws to design of quantum technologies``From new quantum laws to design of quantum technologies Prof. Davide Girolami Politecnico di Torino Location: 1080 Physics Research Building, Smith Seminar Room Faculty Host: Zeke Johnston-Halperin and Ron Reano Abstract: Many-body quantum systems are the most powerful computers allowed by Nature. How can we control them? How fast are they? How much energy do they need? In this talk, I discuss how recent results in quantum information theory translate into quantum engineering solutions, contributing to answer these important questions. I introduce an information measure that evaluates the difference between two configurations of arbitrarily large quantum systems, e.g., the actual preparation of a quantum device and the expected, ideal wave function. The result is instrumental in determining the maximum conversion rate of physical resources (energy and time) into quantum computational power. In particular, a simple but universally valid inequality, formally similar to the Heisenberg uncertainty relations, establishes a lower bound to the experimental cost of creating a target quantum state. These findings advance our understanding of the structure and dynamics of complex quantum systems, such as quantum computers and quantum networks made of thousands of interacting atoms, inspiring design principles for quantum information processing in realistic scenarios. References: D. Girolami and F. Anzà, Phys. Rev. Lett. 126 170502 (2021) D. Girolami, Phys. Rev. Lett. 122, 010505 (2019), Editors' Suggestion Bio: Davide Girolami develops ideas for investigating the power and limits of quantum information processing. His main results include theoretical, computational and experimental methods to evaluate quantum coherence and quantum correlations in complex systems. Davide is currently R. Levi Montalcini Assistant Professor at Politecnico di Torino. Previously, he was J. R. Oppenheimer Fellow and Director's Fellow at Los Alamos National Laboratory, EPSRC Fellow/J. Martin Fellow and Junior Research Fellow of Wolfson College at University of Oxford, and a postdoctoral fellow at National University of Singapore. He holds a PhD from University of Nottingham. Join Zoom Meeting https://osu.zoom.us/j/94171300606?pwd=OWNycXVQMWExZjM4QXBkOU9PTDFUQT09 Meeting ID: 941 7130 0606 Password: 508411``1080 Physics Research Building``OSU ASC Drupal 8``ascwebservices@osu.edu``America/New_York``public`

`2022-10-19 13:30:00``2022-10-19 14:30:00``Colloquium - Davide Girolami (Politecnico di Torino) - From new quantum laws to design of quantum technologies``From new quantum laws to design of quantum technologies Prof. Davide Girolami Politecnico di Torino Location: 1080 Physics Research Building, Smith Seminar Room Faculty Host: Zeke Johnston-Halperin and Ron Reano Abstract: Many-body quantum systems are the most powerful computers allowed by Nature. How can we control them? How fast are they? How much energy do they need? In this talk, I discuss how recent results in quantum information theory translate into quantum engineering solutions, contributing to answer these important questions. I introduce an information measure that evaluates the difference between two configurations of arbitrarily large quantum systems, e.g., the actual preparation of a quantum device and the expected, ideal wave function. The result is instrumental in determining the maximum conversion rate of physical resources (energy and time) into quantum computational power. In particular, a simple but universally valid inequality, formally similar to the Heisenberg uncertainty relations, establishes a lower bound to the experimental cost of creating a target quantum state. These findings advance our understanding of the structure and dynamics of complex quantum systems, such as quantum computers and quantum networks made of thousands of interacting atoms, inspiring design principles for quantum information processing in realistic scenarios. References: D. Girolami and F. Anzà, Phys. Rev. Lett. 126 170502 (2021) D. Girolami, Phys. Rev. Lett. 122, 010505 (2019), Editors' Suggestion Bio: Davide Girolami develops ideas for investigating the power and limits of quantum information processing. His main results include theoretical, computational and experimental methods to evaluate quantum coherence and quantum correlations in complex systems. Davide is currently R. Levi Montalcini Assistant Professor at Politecnico di Torino. Previously, he was J. R. Oppenheimer Fellow and Director's Fellow at Los Alamos National Laboratory, EPSRC Fellow/J. Martin Fellow and Junior Research Fellow of Wolfson College at University of Oxford, and a postdoctoral fellow at National University of Singapore. He holds a PhD from University of Nottingham. Join Zoom Meeting https://osu.zoom.us/j/94171300606?pwd=OWNycXVQMWExZjM4QXBkOU9PTDFUQT09 Meeting ID: 941 7130 0606 Password: 508411``1080 Physics Research Building``Department of Physics``physics@osu.edu``America/New_York``public`**From new quantum laws to design of quantum technologies **

Prof. Davide Girolami

Politecnico di Torino

*Location: 1080 Physics Research Building, Smith Seminar Room*

Faculty Host: Zeke Johnston-Halperin and Ron Reano

**Abstract**: Many-body quantum systems are the most powerful computers allowed by Nature.

How can we control them? How fast are they? How much energy do they need?

In this talk, I discuss how recent results in quantum information theory translate into quantum engineering solutions, contributing to answer these important questions. I introduce an information measure that evaluates the difference between two configurations of arbitrarily large quantum systems, e.g., the actual preparation of a quantum device and the expected, ideal wave function. The result is instrumental in determining the maximum conversion rate of physical resources (energy and time) into quantum computational power. In particular, a simple but universally valid inequality, formally similar to the Heisenberg uncertainty relations, establishes a lower bound to the experimental cost of creating a target quantum state.

These findings advance our understanding of the structure and dynamics of complex quantum systems, such as quantum computers and quantum networks made of thousands of interacting atoms, inspiring design principles for quantum information processing in realistic scenarios.

References:

D. Girolami and F. Anzà, Phys. Rev. Lett. 126 170502 (2021)

D. Girolami, Phys. Rev. Lett. 122, 010505 (2019), Editors' Suggestion

**Bio:**

Davide Girolami develops ideas for investigating the power and limits of quantum information processing. His main results include theoretical, computational and experimental methods to evaluate quantum coherence and quantum correlations in complex systems.

Davide is currently R. Levi Montalcini Assistant Professor at Politecnico di Torino. Previously, he was J. R. Oppenheimer Fellow and Director's Fellow at Los Alamos National Laboratory, EPSRC Fellow/J. Martin Fellow and Junior Research Fellow of Wolfson College at University of Oxford, and a postdoctoral fellow at National University of Singapore. He holds a PhD from University of Nottingham.

Join Zoom Meeting

https://osu.zoom.us/j/94171300606?pwd=OWNycXVQMWExZjM4QXBkOU9PTDFUQT09

Meeting ID: 941 7130 0606

Password: 508411