IISER Mohali, Knowledge city, Sector 81, SAS Nagar, Manauli PO 140306

Dr. Sandeep K. Goyal
Assistant Professor, Physical Sciences

Email skgoyal(AT)iisermohali.ac.in
Fax +91 172 2240124
Personal Page                                                               
Research Area
Quantum optics and quantum information theory

Research Focus

I am a theoretical physicist working in the field of open quantum systems, quantum information theory, quantum optics, condensed matter systems and mathematical physics. My research interests are directed toward understanding the possibilities and limitations of photonic quantum information processing and devising methods to control the effects of noise therein. This would allow us to realize scalable and universal quantum computing devices. I have developed various methods to perform quantum teleportation in the orbital angular momentum states of a single photon. I have devised implementation schemes to realize one- and multi-dimensional quantum walks using classical optical setup. Currently, I am working on simulating quantum algorithms such as Shor's algorithm using optical systems. I am also working on Quantum memories. A quantum memory is a device which is capable of storing and reemitting a single photon on demand. I am interested in studying the effect of the thermal and phononic bath on the efficiency of the quantum memory which is realized in various systems.

Selected Publications
  • Sandeep K. Goyal, B. Neethi Simon, Rajeev Singh, Sudhavathani Simon, Geometry of the generalized Bloch sphere for qutrit, J. Phys. A: Math. Theor. 49 165203 (2016).
  • Sandeep K. Goyal, Rajeev Singh and Sibasish Ghosh, How measurement reversal could erroneously suggest the capability to discriminate the preparation basis of a quantum ensemble,Phys. Rev. A 93, 012114 (2016).
  • Sandeep K. Goyal, Filippus S. Roux, Andrew Forbes, Thomas Konrad, Implementation of Multidimensional Quantum Walks using Linear Optics and Classical Light,Phys. Rev. A 92, 040302(R) (2015).
  • Ish Dhand, Sandeep K. Goyal, Realization of arbitrary discrete unitary transformations using spatial and internal modes of light,Phys. Rev. A 92, 043813 (2015).
  • Sandeep K Goyal, Filippus S Roux, Andrew Forbes and Thomas Konrad, Implementing quantum walks using orbital angular momentum of classical light,Phys. Rev. Lett. 110 263602 (2013).


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