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VERSION:2.0
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BEGIN:VEVENT
SUMMARY:QSE Quantum Seminar: "Cooling a Qubit using n Others"
DTSTART:20260115T120000
DTEND:20260115T133000
DTSTAMP:20260528T153456Z
UID:1f7e06398593f4a90eb1be6f6747524b2d228f4861b99a829fa7d9cd
CATEGORIES:Conferences - Seminars
DESCRIPTION:Jake Xuereb\nPlease join us for the QSE Center Quantum Semi
 nar with Jake Xuereb from TU Wien's Atominstitut who will give the tal
 k "Cooling a Qubit using n Others" on Thursday January 15 from 12pm to 1
 :30pm.\nLocation: CE 1 105\n\nPizzas will be available at 12:00. All PhDs
 \, postdocs\, students\, group leaders\, and PIs are welcome to join us.\n
 \nTITLE: "Cooling a Qubit using n Others" \n\nABSTRACT:\nWhen running a 
 quantum computer\, it is often necessary to reset part of the register to 
 the all-zero state. Ideally\, this should be done efficiently\, without re
 lying on highly contrived multipartite operations and without dissipating 
 excessive heat into a classical refrigerator.\n\nIn this talk\, we will ex
 plore the problem of unitarily cooling a single qubit using access to n au
 xiliary reservoir qubits with a given energy distribution. I will show tha
 t the achievable cooling is governed by a family of simple inequalities de
 termined by macroscopic quantities such as the qubits’ temperatures and 
 the total energy of the reservoir.\n\nRemarkably\, these inequalities allo
 w the cooling problem to be mapped onto a minimum-weight perfect matching 
 problem on Boolean hypercube graphs\, translating a thermodynamic task int
 o a problem of combinatorics. This perspective enables us to predict when 
 cooling is efficient or inefficient depending on the reservoir’s energy 
 structure\, and to develop systematic methods for optimising cooling inter
 actions.\n\nReference : arXiv:2506.10059\n\nBIO: \nJake Xuereb is a final
 -year PhD student in the group of Prof. Marcus Huber at the TU Wien's Atom
 institut in Vienna. Originally from Malta\, he found his way into quantum 
 thermodynamics by way of Dublin as a visiting graduate student at Trinity 
 College (Goold Group) and UCD (Campbell Group). His research focusses on s
 tudying how thermodynamic constraints limit an agent’s ability to proces
 s information and the development of quantum thermodynamics from an operat
 ional perspective. This avenue of research asks how the insights of quantu
 m thermodynamics— from thermodynamic detection of entanglement to comput
 ational models based on heat exchange between quantum systems. In the comm
 unity\, he is known for founding the Qalypso Summer Schools which take pla
 ce every other summer in Malta.
LOCATION:CE 1 105 https://plan.epfl.ch/?room==CE%201%20105
STATUS:CONFIRMED
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