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UID:DSC-22011
DTSTART;TZID=Europe/Berlin:20260223T163000
SEQUENCE:1771828826
TRANSP:OPAQUE
DTEND;TZID=Europe/Berlin:20260223T173000
URL:https://dresden-science-calendar.org/calendar/de/detail/22011
LOCATION:MPI-PKS\, Nöthnitzer Straße 3801187 Dresden
SUMMARY:Murch: Postselection as a Resource for Quantum Control: Dynamics\, 
 Geometry\, and Topology in Open Systems
CLASS:PUBLIC
DESCRIPTION:Speaker: Prof Kater Murch\nInstitute of Speaker: UC Berkeley\nT
 opics:\nPhysik\n Location:\n  Name: MPI-PKS ()\n  Street: Nöthnitzer Stra
 ße 38\n  City: 01187 Dresden\n  Phone: + 49 (0)351 871 0\n  Fax: \nDescri
 ption: Postselection—the conditioning of quantum dynamics on specific me
 asurement outcomes—is a powerful but subtle control resource in open qua
 ntum systems. By selecting particular measurement trajectories\, postselec
 tion fundamentally reshapes quantum evolution\, leading to dynamics that c
 annot be described by standard unitary or Lindbladian frameworks alone. In
  this colloquium\, I will introduce how postselection gives rise to effect
 ive non-Hermitian dynamics\, alters measurement backaction\, and enables a
 ccess to new geometric and topological phenomena. Using superconducting qu
 antum circuits with engineered dissipation as a concrete experimental plat
 form\, I will illustrate how postselecting on “no-jump” trajectories g
 enerates non-Hermitian Hamiltonians with exceptional points\, complex ener
 gy landscapes\, and unconventional adiabatic behavior. I will show how the
 se features manifest in phenomena such as weak-values\, complex Berry phas
 es\, topological state transfer\, and nonlinear quantum evolution. Beyond 
 specific experiments\, postselection provides a bridge between measurement
  theory\, non-Hermitian physics\, and quantum control. From this perspecti
 ve\, postselection emerges as a versatile control resource that bridges me
 asurement theory\, non-Hermitian physics\, and dissipative quantum control
 \, touching on Liouvillian dynamics\, quantum trajectories\, and stabiliza
 tion of open-system evolution.
DTSTAMP:20260308T012416Z
CREATED:20250520T053730Z
LAST-MODIFIED:20260223T064026Z
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