QSE Quantum Seminar: Towards the experimental implementation of a critical Schrödinger-cat qubit
Cancelled
Event details
| Date | 08.02.2024 |
| Hour | 12:00 › 13:30 |
| Speaker | Alexander Grimm, Paul Scherrer Institute |
| Location | |
| Category | Conferences - Seminars |
| Event Language | English |
THIS EVENT HAS BEEN REPLACED BY THE QSE QUANTUM NETWORKING EVENT
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Please join us for the QSE Center Quantum Seminar with Dr Alexander Grimm from the Paul Scherrer Institute, who will speak Thursday February 8: "Towards the experimental implementation of a critical Schrödinger-cat qubit"
Location: CE 1 100
Pizzas will be available before the seminar at 12:00. All PhDs, postdocs, students, and PIs are welcome to join us.
TITLE: Towards the experimental implementation of a critical Schrödinger-cat qubit
ABSTRACT: Quantum two-level systems are routinely used to encode qubits but tend to be inherently fragile, leading to errors in the encoded information. Quantum error correction (QEC) addresses this challenge by encoding effective qubits into more complex quantum systems. Unfortunately, the hardware overhead associated with QEC can quickly become very large.
In contrast, a qubit that is intrinsically protected against a subset of quantum errors can be encoded into superpositions of two opposite-phase oscillations in a resonator, so-called Schrödinger-cat states [1]. There are various methods [2,3] to stabilize and manipulate the basis states of such a “Schrödinger-cat qubit” which has the potential to significantly reduce the complexity of QEC. I will describe how these methods can be combined in the so-called “critical” Schrödinger-cat qubit [4] and discuss our progress towards its experimental implementation.
References
_____
Please join us for the QSE Center Quantum Seminar with Dr Alexander Grimm from the Paul Scherrer Institute, who will speak Thursday February 8: "Towards the experimental implementation of a critical Schrödinger-cat qubit"
Location: CE 1 100
Pizzas will be available before the seminar at 12:00. All PhDs, postdocs, students, and PIs are welcome to join us.
TITLE: Towards the experimental implementation of a critical Schrödinger-cat qubit
ABSTRACT: Quantum two-level systems are routinely used to encode qubits but tend to be inherently fragile, leading to errors in the encoded information. Quantum error correction (QEC) addresses this challenge by encoding effective qubits into more complex quantum systems. Unfortunately, the hardware overhead associated with QEC can quickly become very large.
In contrast, a qubit that is intrinsically protected against a subset of quantum errors can be encoded into superpositions of two opposite-phase oscillations in a resonator, so-called Schrödinger-cat states [1]. There are various methods [2,3] to stabilize and manipulate the basis states of such a “Schrödinger-cat qubit” which has the potential to significantly reduce the complexity of QEC. I will describe how these methods can be combined in the so-called “critical” Schrödinger-cat qubit [4] and discuss our progress towards its experimental implementation.
References
- Mirrahimi, M. et al. New J. Phys. 16, 045014 (2014).
- Leghtas, Z. et al. Science 347, 853–857 (2015).
- Grimm, A. , Frattini N.E., et al. Nature 584, 205–209 (2020).
- Gravina, L., Minganti, F. & Savona, V. PRX Quantum 4, 020337 (2023).
Practical information
- Informed public
- Free
Organizer
- QSE Center