Ren Zhang

Oct 1, 2024 | link.aps.org | Chenwei Lv |Ren Zhang |Xi'an Jiaotong |Qi Zhou

Krylov complexity has emerged as a probe of operator growth in a wide range of nonequilibrium quantum dynamics. However, a fundamental issue remains in such studies: the definition of the distance between basis states in Krylov space is ambiguous. Here we show that Krylov complexity can be rigorously established from circuit complexity when dynamical symmetries exist.

Jun 21, 2023 | link.aps.org | Xiaoyi Yang |Quantum Optoelectronic Devices |Xi'an Jiaotong |Ren Zhang

Abstract Using high-temperature virial expansion, we study the quench dynamics of the thermal Bose gases near wide, narrow, and intermediate Feshbach resonances. Our results show that the shallow bound state near Feshbach resonances leads to oscillation of n̂k. Near the wide Feshbach resonance, the long-time momentum distribution n̂k oscillates when the scattering length as is quenched to large but with finite positive values. The oscillation frequency is determined by the bound-state energy.

Apr 1, 2023 | capilanocourier.com | Ren Zhang

Those who have lived in foster care, kinship care, or under the Children’s Aid Society are eligible for their $2,000 bursaryRen Zhang (they/them) // ContributorLiza Borissova // Illustrator“[Former foster children] are the most underrepresented demographic when it comes to scholarships and bursaries,” says Joseph Dinesh, a communication coordinator for Storwell.

Mar 14, 2023 | amazon.science | Ren Zhang |Eddie Huang |Jong Park

Amazon's massive catalogue makes it possible to personalize a customer's shopping experience in countless ways. It's not surprising when the Amazon Store anticipates you've come back to buy the treats your dog loves, and you see the option up front on the homepage. But there may also be similar brands worth considering for your pup. Also, you might be due for more face wash, an item in your wishlist is on sale, and several options match the jeans you were looking for the other day.

Mar 13, 2023 | capilanocourier.com | Ren Zhang

A celebration of Indigenous African music comes to the Blueshore stageRen Zhang (they/them) // ContributorFreya Emery // IllustratorA beloved fixture of the Capilano Jazz Studies program, Dr. Kofi Gbolonyo is a professor, ethnomusicologist and expert musician who spends his time sharing his wealth of knowledge. He specializes in West African music that, in the scope of its definition, includes dancing and singing.