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Wei  Tzu-Chieh Wei

  Associate Professor
  C.N. Yang Institute for Theoretical Physics
  State University of New York at Stony Brook, Stony Brook, NY 11794
  Office: Math Building 6-101
  Phone: (631) 632-7966, Fax: (631) 632-7954
My email

What's new?

** Sep 14, 2018 ** My work with former student Dr. Colin West on "Global and short-range entanglement properties in excited, many-body localized spin chains" was posted on the arXiv:1809.04689

** Sep 7, 2018 ** I gave a seminar at our CS department on "Recent Trends on Quantum Computation"
** Sep 7, 2018 ** My work with by now former student Dr. Abhishodh Prakash and Dr. Juven Wang on "Unwinding Short-Range Entanglement" has appeared in Phys. Rev. B 98, 125108 (2018).

** July 27, 2018 ** My work with Nicholas Pomata and Ching-Yu Huang on "Phase transitions of a two-dimensional deformed Affleck-Kennedy-Lieb-Tasaki model" has appeared at Phys. Rev. B 98, 014432 (2018)

** June 25, 2018** My student Abhishodh Prakash successfully defended his PhD thesis. Congratulations, Dr Prakash!

** May 27-Juen 10, 2018 ** I attended the workshop on "From Physics to Applications of Quantum Computers" at the Aspen for Physics.

** May 22, 2018 ** I gave a talk on "Spin systems for quantum computation via local measurement" in the Joint Science Meeting between IACS and Tokyo Institute of Technology held at SBU

** May 4, 2018 ** I gave a seminar at the IACS on "Introduction to Quantum Computer: What's all the fuss about?"

** May 1st, 2018 ** My work with Abhishodh Prakash and Juven Wang on "Unwinding Short-Range Entanglement" has appeared in the arXiv:1804.11236

** April 27, 2018 ** My review paper on "Quantum spin systems for measurement-based quantum computation" has now appeared in Advances in Physics X, 3:1, DOI: 10.1080/23746149.2018.1461026.

** April 27, 2018 ** I gave a talk on "Exploiting Symmetry-Protected Topological Phases for Quantum Computation" at the Graduate Center, CUNY.

** April 10, 2018 ** My work with visitor Prof. Wanzhou Zhang and his student on "Machine learning of phase transitions in the percolation and XY models", has appeared in arXiv:1804.02709

** April 9, 2018 ** I gave a talk on "Quantum Computer: What's all the fuss about?" at CFN, Brookhaven National Lab.

** Feb. 5, 2018 ** My paper with students Yanzhu Chen and Abhishodh Prakash on "Universal quantum computing using $Z_d^3$ symmetry-protected topologically ordered states" has appeared in Phys. Rev. A 97, 022305 (2018).

My Teaching

Spring 2018: PHY251 Modern Physics Lecture (PHY251) and Recitation (PHY251-R02)         
                     PHY670 (co-organizer; for schedules of talks, please check with YITP calendar)

Fall 2017: PHY670 (co-organizer; for schedules of talks, please check with YITP calendar)

Spring 2017: PHY251 Modern Physics
                    PHY670 (for schedules of talks, please check with YITP calendar)

Fall 2016: PHY126-R01 Classical Physics B
                PHY670 (co-organizer; for schedules of talks, please check with YITP calendar)

Spring 2016: PHY308 Quantum Physics and PHY578 Quantum Physics for Teachers
                     PHY670 (co-organizer; for schedules of talks, please check with YITP calendar)

Fall 2015: PHY670 Seminar in Theoretical Physics (Seminar ITP) [YITP seminar calendar]

Spring 2015: PHY308 Quantum Physics
                    PHY578 Quantum Physics for Teachers

Fall 2014: PHY126-R01 Classical Physics B

Spring 2014: PHY680.01 Quantum Computing

Fall 2013: PHY131-R10 Classical Physics I

Spring 2013: PHY598 Graduate Seminar: AMO and Condensed Matter Physics

Fall 2012: PHY566 Quantum Electronics II (Quantum Optics)

Spring 2012: PHY680.01 Quantum Computing and Quantum Information

My research interests

include, but not limited to

(1)  Quantum Information Science: quantum computing, quantum entanglement, quantum state manipulation, complexity theory etc.
(2)  Condensed Matter Physics: intrinsic and symmetry-protected topological phases, superconductivity, superfluidity, cold atoms and optical lattices, carbon nanotubes, graphenes, etc.
(3)  Tensor-Network methods: MPS, PEPS, etc.

Detailed description is being updated; see here

Useful links


arXiv Blog
Physical Review Letters
Physical Review A
Physical Review B
Nature Physics

Virtual Journals:
Quantum Information
Nano Science & Technology
Applications of Superconductivity
Atomic Quantum Fluids

UBC Physics and Astronomy
Institute for Quantum Computing

Perimeter Institute for Theoretical Physics

Department of Physics, University of Illinois

CN Yang Institute for Theoretical Physics

Department of Physics and Astronomy, Stony Brook University

Simons Center for Geometry and Physics


Preskill Lecture Notes

Quantum Meetings (Daniel Lidar's)
Quantum Conferences (Andrew White's)

Visitor Information:

From JFK: It is highly recommended using JFK airport. Use the Airtrain at JFK to Jamaica Station. (Before exiting Airtrain station at Jamaica, you need to purchase a ticket, which contains 5 dollars for Airtrain and LIRR train fare to Port Jefferson or Stony Brook. (Check the timetable at
Long Islands Rail Road or paper copies of it at the train station to determine whether it is a peak or off-peak.) At Jamaica Station, take the train (Long Islands Rail Road) towards Port Jefferson (which may appear as a train to Huntington or Hicksville, check the timetable).  Note that you may need to transfer at Huntington or Hicksville indicated on the timetable in order to get to Stony Brook, but it is very easy. Stony Brook Station, next to the campus is the last stop before Port Jefferson Station. If you stay on the campus Hilton Garden Inn, you need to get off at the Stony Brook Station. It is recommended that you contact Hilton Garden Inn in advance (e.g. the day before or nn the morning of travel) to arrange a pickup from the Stony Brook Station. It's about 20 minutes walk and there are campus busses looping the campus (see map here), but not as convenient as the arranged pickup. If you stay at Danfords, you get off at the Port Jefferson Station. You may need to call in advance to arrange a pickup or take a taxi to your hotel. It's about 20minutes walk. (Visitors usually stay either at Danfords Hotel at Port Jefferson or Hilton Garden Inn on Stony Brook campus.)

From LGA, you need to arrange a shuttle, e.g., SuperShuttle or else you can take a taxi to Jamaica Station, then follow the above instruction to Stony Brook or Port Jefferson. Or you can take Q70 bus from LGA to Woodside station of LIRR (http://www.mta.info/news/2013/09/06/fly-laguardia-lirr) and from Woodside you can get to Huntington (via the Ronkonkoma line) and transfer to one that goes to Stony Brook (Port Jeffersion line).

From New Havens, Boston or north east by train: take Amtrack to Bridgeport, CT. Go to the ferry terminal, take the ferry from Bridgeport to Port Jefferson. The Danfords Hotel is right next to the ferry at Port Jefferson.

From Danfords Hotel to Stony Brook, there is a hotel shuttle. Ask the front desk the night before to arrange. Usually there are visitors to Simons Center using that shuttle service as well. The shuttle driver knows Simons Center. YITP is at the 6th floor of Math Tower, next to Simons Center.

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