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10-27
2021
On the existence of thermodynamic potentials for quantum systems: A resource-theoretic approach
Abstract: In equilibrium thermodynamics, the Boltzmann entropy serves as a complete thermodynamic potential that characterizes state convertibility in a necessary and sufficient manner. In this talk,...
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05-26
2016
Quantum Journal Club：A universal gate for fixed-frequency qubits via a tunable bus
Abstract: Claude Shannon proved in 1949 that information-theoretic-secure encryption is possible if the encryption key is used only once, is random, and is at least as long as the message itself. Not...
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03-04
2013
Universal Subspaces for Local Unitary Groups of Fermionic Systems
For the representation $ ho$ of the local unitary (LU) group $G$ on the $N$-fermion Hilbert space $\mathcal{V}=\wedge^N V$ with $M$-dimensional single particle space $V$, a universal subspace $\mathca...
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01-25
2024
Quantum simulation of entangled matter with an ion trap quantum computer
Abstract: Trapped-ion quantum computers provide a pristine one-dimensional spin system, featuring high isolation from the environment, high-fidelity measurement and preparation of individual spins, a...
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09-04
2018
Self-testing using only marginal information
Abstract: Self-testing, aka device-independent tomography, refers to the fact that some quantum states and measurements can be uniquely determined from the observed statistics, without any prior char...
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09-21
2018
Towards an Optical Frequency Standard based on 176Lu+
Abstract: In essence, the accuracy and performance of an atomic clock ultimately depends on various systematic shifts in the narrow-linewidth transition in an isolated atomic system. Lutetium ion pos...