People: Zeyang Li

Graduate Student
Publications
  1. W. Xu, T. Sumarac, E. Qiu, M. Peters, S. Cantu, Z. Li, A. Menssen, M. Lukin, S. Colombo, and V. Vuletic. Bose-Einstein condensation by polarization gradient laser cooling. Phys Rev Lett, 132(233401), June 2024.
  2. Z. Li. Exploring Novel Quantum Physics Using Ytterbium-171 in An Optical Cavity. MIT, 2023.
  3. Z. Li, S. Colombo, C. Shu, G. Velez, S. Choi, M. Lukin, E. Pedrozo-Peñafiel, V. Vuletic, S. Pilatowsky-Cameo, and R. Schmied. Improving metrology with quantum scrambling. Science, 380(6652):1381-1384, June 2023.
  4. Z. Li, B. Braverman, S. Colombo, C. Shu, A. Kawasaki, A. Adiyatullin, E. Pedrozo-Peñafiel, E. Mendez, and V. Vuletic. Collective Spin-Light and Light-Mediated Spin-Spin Interactions in an Optical Cavity. PRX Quantum, 3(020308), 2022.
  5. S. Colombo, E. Pedrozo-Peñafiel, A. Adiyatullin, Z. Li, E. Mendez, C. Shu, and V. Vuletic. Time-reversal-based quantum metrology with many-body entangled states. Nature Physics, 1817(181), July 2022.
  6. E. Pedrozo-Peñafiel, S. Colombo, C. Shu, A. Adiyatullin, Z. Li, E. Mendez, B. Braverman, A. Kawasaki, V. Vuletic, D. Akamatsu, and Y. Xiao. Entanglement on an optical atomic-clock transition. Nature, 588:414–418, December 2020. View Abstract
  7. Y.-X. Liu, Z. Li, A. Ajoy, P. Cappellaro, and J. Hines. High-fidelity Trotter formulas for digital quantum simulation. Phys Rev A, 102(010601), 2020.
  8. A. Kawasaki, B. Braverman, E. Pedrozo-Peñafiel, C. Shu, S. Colombo, Z. Li, and V. Vuletic. Trapping 171Yb Atoms into a One-Dimensional Optical Lattice with Small Waist. Phys Rev A, 102(013114), 2020.
  9. A. Kawasaki, B. Braverman, E. Pedrozo-Peñafiel, C. Shu, S. Colombo, Z. Li, I. Ozel, W. Chen, D. Levonian, Y. Xiao, V. Vuletic, L. Salvi, A. Heinz, and D. Akamatsu. Geometrically asymmetric optical cavity for strong atom-photon coupling. Phys Rev A January 2019.
  10. B. Braverman, A. Kawasaki, E. Pedrozo-Peñafiel, S. Colombo, C. Shu, Z. Li, E. Mendez, Y. Xiao, V. Vuletic, M. Yamoah, L. Salvi, and D. Akamatsu. Near-Unitary Spin Squeezing in 171Yb. Phys. Rev. Lett., 122(223203), June 2019.
  11. P. Peng, Z. Li, K. Xuan Wei, P. Cappellaro, and H. Yan. Comparing many-body localization lengths via non-perturbative construction of local integrals of motion. Phys. Rev. B, 100(214203), December 2018.
News
Tue April 11, 2023

Quantum Scrambling with Time-Reversal: A Powerful Tool for Exponentially Enhanced Metrology

The quantum analog of chaotic dynamics, quantum scrambling, spread quantum information exponentially fast within a quantum many-body system. Understanding how the information spread is a highly nontrivial and crucial question in the field of quantum information science (QIS). Recently, it has been theoretically argued that quantum scrambling is intimately connected with quantum metrology (QM), where...
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Thu February 3, 2022

Reversing time for quantum-enhanced metrology

The group of Prof. Vuletic, at MIT, demonstrated that reversing the time in an atomic sensor can lead to a strongly enhanced sensitivity. With this time-reversal protocol, sensors can be operated with highly-entangled states which carry large statistical information close to the fundamental Heisenberg Limit.  Due to their fragility, these “superior” quantum states are extremely...
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Sun June 7, 2020

Entanglement-based Optical Atomic Clock beats the Standard Quantum Limit

Optical lattice clocks (OLC) are widely recognized as the next golden standard for timekeeping. Over the past decades, researchers around the world have made the second the best characterized among all seven of International System of Units (SI units), reaching an unprecedented fractional stability at few parts-of-ten-Quintillion (1019). Despite the tremendous effort of improving technology...
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Thu May 9, 2019

Near Unitary Squeezing

A group at the MIT led by Prof. Vladan Vuletić has recently generated significant amount of spin squeezing-a type of quantum entanglement-in an ultracold vapor of ytterbium-171. Spin squeezed states (SSS) can be used to overcome the standard quantum limit (SQL) which bounds state-of-the-art atomic sensors like optical clocks. The latter deploy a dilute vapor...
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Mon April 22, 2019

Direct Laser Cooling Rubidium Atoms

A group at MIT led by Vladan Vuletic has recently created a Bose-Einstein Condensate (BEC) of rubidium atoms with a new method, direct laser cooling. Many researchers have attempted this elusive goal in the past, but due to various complications resorted to reaching BEC through evaporation instead. Compared to cooling through evaporation, laser cooling is...
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