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10-18
2024
Symmetry-breaking-enhanced quantum advantage in quantum information systems
内容： We study symmetry-breaking (SB) phenomena in a few quantum information systems, it is shown that SB can create or enhance quantum advantage on quantum information processing. We find that excha...
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10-11
2024
Spin glass, quantum gravity, and their simulations
内容： In this introductory seminar, I will briefly explain the mean-field spin glass, especially focusing on the classical Sherrington-Kirkpatrick (SK) model. I will explain its nontrivial low temper...
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10-09
2024
A Cryptographic Perspective on the Verifiability of Quantum Advantage
内容： In recent years, achieving verifiable quantum advantage on a NISQ device has emerged as an important open problem in quantum information. The sampling-based quantum advantages are not known to ...
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09-25
2024
Linear combination of Hamiltonian simulation for non-unitary dynamics with optimal state preparation cost
内容： We propose a simple method for simulating a general class of non-unitary dynamics as a linear combination of Hamiltonian simulation (LCHS) problems. LCHS does not rely on converting the problem...
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09-25
2024
Engineering Hierarchical Symmetries and Massive Nambu-Goldstone Modes
内容： We present a general driving protocol for many-body systems to generate a sequence of prethermal regimes, each exhibiting a lower symmetry than the preceding one [1]. We provide an explicit con...
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09-24
2024
Towards distributed quantum information processing based on Rydberg atoms
内容： Highly excited Rydberg atoms exhibit strong and long-range interactions, opening new possibilities for scalable quantum information processing. In terms of qubits control, Rydberg atom array is...