Keysight Technologies (NYSE: KEYS) introduced Quantum System Analysis, a quantum EDA solution that enables system-level simulation and optimization of quantum systems by integrating electromagnetism, circuitry, and quantum dynamics within a single environment. This announcement expands the company’s Quantum EDA portfolio — including Quantum Layout, QuantumPro EM, and Quantum Circuit Simulation — and arrives at a pivotal moment for the industry following the 2025 Nobel Prize in Physics awarded for advances in superconducting quantum circuits, one of the key focuses of this new tool.
What it solves
Until now, quantum system validation often depended on fragmented toolchains and repeated cryogenic experiments (which are costly and time-consuming). Quantum System Analysis proposes an integrated “design to experiment” workflow that allows early validation and reduces development cycles:
- Models the entire system: from EM and circuit design to system-level experiments.
- Reduces reliance on cryogenic testing: enabling more shift-left with simulation and fewer iterations in the cryostat.
- Enhances design confidence: evaluates performance and fidelity prior to fabrication or wiring.
Key innovations
1) Time Dynamics Simulator
Simulates the temporal evolution of quantum systems using Hamiltonians derived from EM or circuit simulations. It allows recreation of control experiments such as Rabi and Ramsey sequences, observes coherence, populations, and errors based on pulse parameters and environment interactions.
2) Dilution Fridge Input Line Designer
Accurately models the input lines of the cryostat to the qubits for analyzing thermal noise, estimating effective temperature, and minimizing thermal photon leakage. Assists in selecting and positioning attenuators, filters, isolators, and other components to maximize system fidelity.
Why it matters
- From prototype to qubit manufacturing: a platform that bridges physical domains reduces friction between teams (RF/EM, electronics, quantum control) and accelerates time-to-validation.
- Lower cost and risk: simulating setup and experiment conditions before consuming cryogenic time decreases technical risk and CapEx/OPEX.
- Fidelity and yield: optimizing lines, pulses, and couplings before fabrication or integration increases the likelihood of achieving target fidelities and coherence levels required by NISQ algorithms and scaling plans.
Integration and scope
- Part of ADS 2026 (Advanced Design System).
- Compatible with superconducting platforms and extensible to other modalities such as spin qubits.
- Complements the existing Quantum Layout, QuantumPro EM, and Quantum Circuit Simulation workflows, forming — according to Keysight — a unified quantum workflow from EM modeling → circuit → system.
Chris Mueth, Sr. Director of New Markets at Keysight: “We connect EM and circuit modeling with system simulation to eliminate fragmented toolchains and repetitive cryogenic testing.”
Mohamed Hassan, Quantum Solutions Planning Lead: “Shifting left with simulation enables earlier system-level validation and accelerates quantum innovation.”
Typical use cases
- Design and tuning of input lines (attenuation, filtering, isolation, dissipation) to minimize thermal noise and n̄ (photon number) in cavities and transmons.
- Control sequence planning (Rabi/Ramsey/echo, DRAG, calibrations) with realistic parameters derived from physical design.
- Analysis of parasitic couplings and crosstalk originating from EM layout that degrade fidelity in multi-qubit experiments.
- Estimation of cryogenic thermal budget and its impact on T₁/T₂ and gate fidelity.
Target audience
- R&D teams in superconductivity (academia and industry) seeking to reduce cryo-iterations.
- System integration teams (hardware + control + RF) needing to correlate physical design with the quantum response of the system.
- Manufacturers and foundries interested in pre-validating configurations and improving yield in multi-qubit stacks.
Summary
Quantum System Analysis from Keysight adds the missing link in quantum EDA: system-level simulation with time dynamics and cryostat modeling. It connects the EM/circuit world with the qubit physics. Less “trial and error” at −273 °C; more early validation, fidelity, and speed of innovation. Available in ADS 2026, focusing on superconducting qubits with a roadmap extending to other platforms.
via: keysight