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05-08
2024
Quantum applications based on density matrix vectorization: a polynomial-time quantum algorithm for some hard ground state problems and an unconditionally decoherence-free quantum error mitigation method
内容： In this talk, we will give two quantum applications based on density matrix vectorization. Vectorizing density matrices has been a useful mathematical trick for simplifying many concepts in qua...
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04-29
2024
Entanglement detection length of multipartite quantum states
内容： Multipartite entanglement is a crucial resource for quantum computing, communication, and metrology. However, detecting this resource can be challenging: for genuine multipartite entanglement i...
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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...
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07-12
2024
High fidelity hybrid quantum computing platform based on single quanta of sound
内容： Entanglement and superposition are fundamental properties of quantum-mechanical states, with no classical counterparts. It is well-established that elementary particles, such as electrons and p...
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07-18
2024
Quantum spin liquids and the cuprate superconductors
内容： Quantum spin liquid states have been intensively studied over the past three decades for spin Hamiltonians on the square lattice with short-range interactions which preserve global spin rotatio...
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01-25
2024
Quantum simulation of entangled matter with an ion trap quantum computer
内容： 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, and f...