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10-26
2023
Complexity and order in approximate quantum error-correcting codes
Abstract: Quantum codes achieving approximate quantum error correction (AQEC) are useful, often fundamentally important, from both practical and physical perspectives but remain little understood. In...
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10-19
2023
Quantum simulations on an analog-digital trapped-ion quantum system
Abstract: Our quantum experiment consists of a chain of 171Yb+ ions with individual Raman beam addressing and individual readout. This fully connected system can be configured to run any sequence of ...
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09-28
2023
fermion-to-qubit mappings in two spatial dimensions
Abstract: The talk discusses the relationship between fermionic observables and Pauli matrices on two-dimensional lattices. First, it will introduce the exact bosonization method. It is argued that a...
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09-21
2023
Characterizing the ultimate potential and limitations of quantum error mitigation
Abstract: The inevitable accumulation of errors in near-future quantum devices represents a key obstacle in delivering practical quantum advantages, motivating the development of various quantum erro...
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09-15
2023
Pilot-reference-free continuous-variable quantum key distribution with efficient decoy-state analysis
Abstract: Continuous-variable quantum key distribution (CV QKD) using optical coherent detectors is practically favorable due to its low implementation cost, flexibility of wavelength division multip...
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09-11
2023
Two-dimensional trapped ion crystals, micromotion and qubit state detection
Abstract: To study potential avenues for scaling up trapped ion crystal size, we built a modified Paul trap with an oblate aspect ratio designed for trapping radial 2-d ion crystals. In this geometry...