2026 CAP Congress / Congrès de l'ACP 2026

Session

(DQI) M3-5 | (DIQ)

M3-5

22 Jun 2026, 16:15

U. Ottawa - Learning Crossroads (CRX) Building

855. Strain‑mediated control of hole double quantum dot states using surface acoustic waves in non‑piezoelectric materials

Mr Yousef Karimi Yonjali (Department of Electronics, Carleton University)

22/06/2026, 16:15

Division for Quantum Information / Division de l'information quantique (DQI / DIQ)

Oral Competition (Graduate Student) / Compétition orale (Étudiant(e) du 2e ou 3e cycle)

Strain engineering has long been central to semiconductor physics, traditionally used to modify band structures and improve device performance. Recently, it has emerged as an active quantum control parameter, directly coupling to electronic and spin states. In quantum architectures based on compressively strained germanium-on-silicon (cs GoS) technology, both intrinsic and externally applied...

1018. Zeeman and Hyperfine Effects in Diamond Magnetometry

William Davis (University of Saskatchewan)

22/06/2026, 16:30

Division for Quantum Information / Division de l'information quantique (DQI / DIQ)

Oral Competition (Graduate Student) / Compétition orale (Étudiant(e) du 2e ou 3e cycle)

The Diamond NV centre consists of a substitutional nitrogen adjacent to a vacancy, and can exist in both charged (NV-) and uncharged states (NV0). The NV- are spin 1 centers which exhibit a magnetic moment due to the coupling of 2 individual electron magnetic moments. The magnetic field sensitivity of the spin-1 NV- centre results in a number of interesting physical effects when in the...

934. Finite-Size Effects in Quantum Metrology at Strong Coupling: Microscopic vs Phenomenological Approaches

Ali Pedram (University of Calgary)

22/06/2026, 16:45

Division for Quantum Information / Division de l'information quantique (DQI / DIQ)

Oral (Non-Student) / Orale (non-étudiant(e))

We study the ultimate precision limits of a spin chain, strongly coupled to a heat bath, for measuring a general parameter and report the results for specific cases of magnetometry and thermometry. Employing a full polaron transform, we derive the effective Hamiltonian and obtain analytical expressions for the quantum Fisher information (QFI) of equilibrium states in both weak coupling (WC)...

885. Polarization performance of a dual rail warm Rb QMem

Kenneth Gregory

22/06/2026, 17:00

Division for Quantum Information / Division de l'information quantique (DQI / DIQ)

Oral not-in-competition (Graduate Student) / Orale non-compétitive (Étudiant(e) du 2e ou 3e cycle)

Warm rubidium (Rb) vapor quantum memories are promising platforms for scalable quantum networks due to their technical simplicity and compatibility with room-temperature operation. A key performance metric for these memories is the signal-to-noise ratio (SNR), which directly impacts the fidelity of stored and retrieved quantum states. For practical quantum networking, it is essential that...

553. Exponential onset of scalable entanglement via twist-and-turn dynamics in XY models

Dr Meenu Kumari

22/06/2026, 17:15

Division for Quantum Information / Division de l'information quantique (DQI / DIQ)

Oral (Non-Student) / Orale (non-étudiant(e))

The efficient preparation of scalable multipartite entanglement is crucial for advancing next-generation quantum devices. We explore twist-and-turn (TaT) dynamics in XY models with ferromagnetic, dipolar interactions and a Rabi field. Our study reveals their capacity to achieve scalable spin squeezing at short times and quantum Fisher information with Heisenberg scaling at later times,...